diff --git a/src/components/insights/__tests__/health-score-card-geometry.test.tsx b/src/components/insights/__tests__/health-score-card-geometry.test.tsx
index ff6068a79..29dfcf01b 100644
--- a/src/components/insights/__tests__/health-score-card-geometry.test.tsx
+++ b/src/components/insights/__tests__/health-score-card-geometry.test.tsx
@@ -9,6 +9,7 @@ import type {
   HealthScoreReport,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 import { HeroStrip } from "../hero-strip";
 
 /**
@@ -148,7 +149,7 @@ function reportWith(pillars: ScorePillarResult[]): HealthScoreReport {
         composition: pillars.map((p) => p.id),
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage,
       confidence: { score: 100, band: "high" },
@@ -157,7 +158,7 @@ function reportWith(pillars: ScorePillarResult[]): HealthScoreReport {
     pillars,
     delta: 2,
     deltaReason: null,
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {
diff --git a/src/components/insights/__tests__/health-score-card.test.tsx b/src/components/insights/__tests__/health-score-card.test.tsx
index 66ce483f7..41283bd96 100644
--- a/src/components/insights/__tests__/health-score-card.test.tsx
+++ b/src/components/insights/__tests__/health-score-card.test.tsx
@@ -7,6 +7,7 @@ import type {
   HealthScoreReport,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 import {
   HealthScoreCard,
   HealthScoreCardSkeleton,
@@ -211,7 +212,7 @@ function report(overrides: Partial<HealthScoreReport> = {}): HealthScoreReport {
     pillars: [BLOOD_PRESSURE, ACTIVITY_BELOW_FLOOR],
     delta: null,
     deltaReason: "no_current_score",
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {
@@ -241,7 +242,7 @@ function scoredReport(
         composition: ["BLOOD_PRESSURE", "ACTIVITY", "SLEEP"],
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage: {
         requiredInputs: 3,
@@ -371,7 +372,7 @@ describe("<HealthScoreCard> pillars", () => {
               composition: ["BLOOD_PRESSURE", "GLYCAEMIA"],
               configured: false,
               noiseFloor: 3,
-              scoreVersion: 2,
+              scoreVersion: SCORE_VERSION,
             },
             coverage: {
               requiredInputs: 3,
@@ -600,7 +601,7 @@ describe("<HealthScoreCard> composite states", () => {
     expect(html).not.toContain('data-slot="health-score-card-progress"');
     expect(html).toContain("—");
     expect(html).not.toContain("/ 100");
-    expect(html).toContain("Method version 2");
+    expect(html).toContain(`Method version ${SCORE_VERSION}`);
   });
 
   it("explains a missing comparison where the trend would be", () => {
@@ -665,7 +666,9 @@ describe("<HealthScoreCard> footer", () => {
     const region = anatomyRegion(html);
     expect(region).toContain('data-slot="health-score-method"');
     expect(region).toContain("Overall band set by none");
-    expect(region).toContain("Method version 2. Weekly comparison floor");
+    expect(region).toContain(
+      `Method version ${SCORE_VERSION}. Weekly comparison floor`,
+    );
     expect(region).toContain('data-slot="provenance-explainer-method"');
     expect(region).toContain("equal-weighted average");
   });
diff --git a/src/components/insights/__tests__/hero-strip.test.tsx b/src/components/insights/__tests__/hero-strip.test.tsx
index dc4c21e75..7f59ad7b3 100644
--- a/src/components/insights/__tests__/hero-strip.test.tsx
+++ b/src/components/insights/__tests__/hero-strip.test.tsx
@@ -8,6 +8,7 @@ import type {
   ScorePillarId,
   ScorePillarResult,
 } from "@/lib/analytics/score/types";
+import { SCORE_VERSION } from "@/lib/analytics/score/types";
 
 // The "generated" freshness line reads the profile timezone via `useAuth`; stub
 // it so the SSR render does not reach for a QueryClient the test omits.
@@ -116,7 +117,7 @@ function scoreReport(pillars: ScorePillarResult[]): HealthScoreReport {
         composition: ["BLOOD_PRESSURE"],
         configured: false,
         noiseFloor: 3,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage: {
         requiredInputs: 3,
@@ -130,7 +131,7 @@ function scoreReport(pillars: ScorePillarResult[]): HealthScoreReport {
     pillars,
     delta: 2,
     deltaReason: null,
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: {
       status: "insufficient",
       coverage: {
diff --git a/src/lib/analytics/score/__tests__/composite.test.ts b/src/lib/analytics/score/__tests__/composite.test.ts
index f8544d35d..2a7063fd7 100644
--- a/src/lib/analytics/score/__tests__/composite.test.ts
+++ b/src/lib/analytics/score/__tests__/composite.test.ts
@@ -8,7 +8,13 @@ import {
   SCORE_ALGORITHM_CHANGED_AT,
 } from "../composite";
 import { UNCONFIGURED_SCORE_BOUNDARY } from "../config";
-import type { PillarValue, ScorePillarId, ScorePillarResult } from "../types";
+import { SCORE_GREEN_FLOOR, scoreBand } from "../shared";
+import {
+  SCORE_VERSION,
+  type PillarValue,
+  type ScorePillarId,
+  type ScorePillarResult,
+} from "../types";
 
 const NOW = new Date("2026-08-20T12:00:00.000Z");
 
@@ -86,6 +92,111 @@ function evaluation(
   });
 }
 
+/**
+ * Where the band changes, and what the band is NOT.
+ *
+ * v1.35.1 moved green from 75 to 70, so the Health Score says the same
+ * thing by a green dot that Readiness and the sleep score already did.
+ * Boundaries are pinned on both sides because an off-by-one here is
+ * invisible: a `>` where a `>=` belongs looks perfectly healthy at 80.
+ *
+ * The last case is the one that must survive every future threshold
+ * edit. The band is not a function of the number: `computeComposite`
+ * takes the worse of the mean's band and the worst counted pillar's, and
+ * `HealthScoreRecord.band` is stored rather than re-derived precisely
+ * because of it. A mean above the green floor with a red pillar under it
+ * is still red.
+ */
+describe("the band the mean alone gives", () => {
+  const CASES: Array<[number, string]> = [
+    [69, "yellow"],
+    [70, "green"],
+    [74, "green"],
+    [75, "green"],
+    [49, "red"],
+    [50, "yellow"],
+  ];
+
+  for (const [score, expected] of CASES) {
+    it(`calls ${score} ${expected}`, () => {
+      expect(scoreBand(score)).toBe(expected);
+    });
+  }
+
+  it("says the same thing the app's other two scores say", () => {
+    // Readiness and the sleep score both call 70 green. Three scores in
+    // one app cannot mean three things by one colour, and the Health
+    // Score was the outlier.
+    expect(scoreBand(SCORE_GREEN_FLOOR)).toBe("green");
+    expect(scoreBand(SCORE_GREEN_FLOOR - 1)).toBe("yellow");
+    expect(SCORE_GREEN_FLOOR).toBe(70);
+  });
+
+  it("moved the method version with it", () => {
+    // A stored day keeps the band it was shown under, and the notice key
+    // carries this number, so each account hears once that the rules
+    // moved. A threshold edit without a version bump is a silent one.
+    expect(SCORE_VERSION).toBeGreaterThan(2);
+  });
+});
+
+describe("the worst pillar still holds the band down", () => {
+  it("keeps a composite red when a counted pillar is red, above the green floor", () => {
+    // Mean 73: green on the number alone, and green under the OLD floor
+    // it would have been yellow — so this case can only pass because the
+    // worst-pillar rule survived the threshold change.
+    const result = evaluation(
+      [
+        pillar("BLOOD_PRESSURE", 20),
+        pillar("ACTIVITY", 100),
+        pillar("SLEEP", 100),
+      ],
+      NOW,
+    );
+
+    expect(result.status).toBe("ok");
+    if (result.status !== "ok") return;
+    expect(result.value.score).toBe(73);
+    expect(scoreBand(result.value.score)).toBe("green");
+    expect(result.value.band).toBe("red");
+    expect(result.value.bandSetter).toBe("BLOOD_PRESSURE");
+  });
+
+  it("keeps a composite yellow when its worst pillar is yellow", () => {
+    // Mean 84, every pillar above the red floor, one of them yellow.
+    const result = evaluation(
+      [
+        pillar("BLOOD_PRESSURE", 52),
+        pillar("ACTIVITY", 100),
+        pillar("SLEEP", 100),
+      ],
+      NOW,
+    );
+
+    expect(result.status).toBe("ok");
+    if (result.status !== "ok") return;
+    expect(scoreBand(result.value.score)).toBe("green");
+    expect(result.value.band).toBe("yellow");
+    expect(result.value.bandSetter).toBe("BLOOD_PRESSURE");
+  });
+
+  it("names no setter when every pillar clears the mean's band", () => {
+    const result = evaluation(
+      [
+        pillar("BLOOD_PRESSURE", 71),
+        pillar("ACTIVITY", 90),
+        pillar("SLEEP", 90),
+      ],
+      NOW,
+    );
+
+    expect(result.status).toBe("ok");
+    if (result.status !== "ok") return;
+    expect(result.value.band).toBe("green");
+    expect(result.value.bandSetter).toBeNull();
+  });
+});
+
 describe("reference-score composite", () => {
   it("requires three domains and one measured physiological domain", () => {
     const tooNarrow = evaluation(
diff --git a/src/lib/analytics/score/__tests__/config-change-is-not-a-health-event.test.ts b/src/lib/analytics/score/__tests__/config-change-is-not-a-health-event.test.ts
index 6bca8b52b..3e067b8e8 100644
--- a/src/lib/analytics/score/__tests__/config-change-is-not-a-health-event.test.ts
+++ b/src/lib/analytics/score/__tests__/config-change-is-not-a-health-event.test.ts
@@ -512,16 +512,16 @@ describe("a settings change is never narrated as a health event", () => {
     const unconfigured = await computeUserHealthScore(scoreInput(null));
 
     expect(configured.algorithmNotice!.itemKey).toBe(
-      "health_score_algorithm:2:config:3",
+      "health_score_algorithm:3:config:3",
     );
     expect(configured.algorithmNotice!.dismissed).toBe(false);
-    // An account that never chose keeps the key its acknowledgement is
-    // already filed under.
+    // An account that never chose keeps the bare method key, with no
+    // recipe suffix on it.
     expect(unconfigured.algorithmNotice!.itemKey).toBe(
-      "health_score_algorithm:2",
+      "health_score_algorithm:3",
     );
 
-    dismissedKeys.add("health_score_algorithm:2:config:3");
+    dismissedKeys.add("health_score_algorithm:3:config:3");
     expect(
       (await computeUserHealthScore(scoreInput(JUST_CHANGED))).algorithmNotice!
         .dismissed,
@@ -539,7 +539,7 @@ describe("a settings change is never narrated as a health event", () => {
       ),
     );
     expect(next.algorithmNotice!.itemKey).toBe(
-      "health_score_algorithm:2:config:4",
+      "health_score_algorithm:3:config:4",
     );
     expect(next.algorithmNotice!.dismissed).toBe(false);
   });
diff --git a/src/lib/analytics/score/__tests__/config-delta-guard.test.ts b/src/lib/analytics/score/__tests__/config-delta-guard.test.ts
index aa6581931..01d1419cc 100644
--- a/src/lib/analytics/score/__tests__/config-delta-guard.test.ts
+++ b/src/lib/analytics/score/__tests__/config-delta-guard.test.ts
@@ -39,6 +39,7 @@ import type {
   ScorePillarId,
   ScorePillarResult,
 } from "../types";
+import { SCORE_VERSION } from "../types";
 
 const DAY_MS = 86_400_000;
 const NOW = new Date("2026-08-20T12:00:00.000Z");
@@ -115,7 +116,7 @@ function composite(score: number, asOf: Date): Derived<CompositeValue> {
       composition: ["BLOOD_PRESSURE", "ACTIVITY", "SLEEP"],
       configured: false,
       noiseFloor: 1,
-      scoreVersion: 2,
+      scoreVersion: SCORE_VERSION,
     },
     coverage,
     confidence,
@@ -190,7 +191,7 @@ describe("the recipe boundary", () => {
         composition: ["BLOOD_PRESSURE", "ACTIVITY"],
         configured: false,
         noiseFloor: 1,
-        scoreVersion: 2,
+        scoreVersion: SCORE_VERSION,
       },
       coverage: {
         requiredInputs: 3,
diff --git a/src/lib/analytics/score/__tests__/record.test.ts b/src/lib/analytics/score/__tests__/record.test.ts
index 16d322cc0..2d92f5a91 100644
--- a/src/lib/analytics/score/__tests__/record.test.ts
+++ b/src/lib/analytics/score/__tests__/record.test.ts
@@ -28,6 +28,7 @@ import type {
   ScorePillarId,
   ScorePillarResult,
 } from "../types";
+import { SCORE_VERSION } from "../types";
 
 const NOW = new Date("2026-08-20T12:00:00.000Z");
 
@@ -103,7 +104,7 @@ function report(
     pillars,
     delta: null,
     deltaReason: "no_previous_window",
-    scoreVersion: 2,
+    scoreVersion: SCORE_VERSION,
     weightGoal: { status: "insufficient" } as HealthScoreReport["weightGoal"],
     algorithmNotice: null,
   };
@@ -144,7 +145,7 @@ describe("stored bands", () => {
 
 describe("input fingerprint", () => {
   const base = {
-    scoreVersion: 2,
+    scoreVersion: 1,
     composition: ["BLOOD_PRESSURE", "SLEEP", "ADIPOSITY"] as ScorePillarId[],
     pillars: HEALTHY,
   };
@@ -156,7 +157,7 @@ describe("input fingerprint", () => {
   });
 
   it("moves when the algorithm version moves", () => {
-    expect(healthScoreInputFingerprint({ ...base, scoreVersion: 3 })).not.toBe(
+    expect(healthScoreInputFingerprint({ ...base, scoreVersion: 2 })).not.toBe(
       healthScoreInputFingerprint(base),
     );
   });
diff --git a/src/lib/analytics/score/shared.ts b/src/lib/analytics/score/shared.ts
index 66f960912..fde7fffd7 100644
--- a/src/lib/analytics/score/shared.ts
+++ b/src/lib/analytics/score/shared.ts
@@ -19,9 +19,37 @@ export function clampScore(value: number): number {
   return Math.max(0, Math.min(100, Math.round(value)));
 }
 
+/** Green from here up. Yellow from {@link SCORE_YELLOW_FLOOR} up. */
+export const SCORE_GREEN_FLOOR = 70;
+
+/** Below this is red. */
+export const SCORE_YELLOW_FLOOR = 50;
+
+/**
+ * The band a 0-100 score falls in, from the number alone.
+ *
+ * v1.35.1 — green starts at 70, not 75. The app carries three scores and
+ * had two conventions: Readiness and the sleep score both call 70 green
+ * (`bandForScore` in `src/lib/insights/derived/readiness.ts` and
+ * `src/lib/insights/derived/sleep-score.ts`), and the Health Score alone
+ * sat at 75. One app cannot mean two things by a green dot, so the
+ * outlier moved. The yellow floor stays at 50 deliberately: raising the
+ * bar for a reward and lowering the bar for a warning are different
+ * decisions, and only the first one was asked for.
+ *
+ * This is a METHOD change, so `SCORE_VERSION` moved with it. Stored days
+ * keep the band they were actually shown under, and the notice key
+ * carries the version, so each account is told once that the method
+ * moved.
+ *
+ * NOT the whole band rule. `computeComposite` takes the worse of this
+ * band and the worst counted pillar's band, so a composite carrying a red
+ * pillar stays red however high the mean sits. That rule is untouched;
+ * only the mean-side thresholds moved.
+ */
 export function scoreBand(score: number): ScoreBand {
-  if (score >= 75) return "green";
-  if (score >= 50) return "yellow";
+  if (score >= SCORE_GREEN_FLOOR) return "green";
+  if (score >= SCORE_YELLOW_FLOOR) return "yellow";
   return "red";
 }
 
diff --git a/src/lib/analytics/score/types.ts b/src/lib/analytics/score/types.ts
index f9e6eca9e..e958263ce 100644
--- a/src/lib/analytics/score/types.ts
+++ b/src/lib/analytics/score/types.ts
@@ -5,7 +5,19 @@ import type {
   DerivedProvenanceSource,
 } from "@/lib/insights/derived/types";
 
-export const SCORE_VERSION = 2 as const;
+/**
+ * The scoring method's identity.
+ *
+ * Moves whenever the method changes, which is what lets a stored day say
+ * which rules produced it and lets each account be told once that the
+ * rules moved (`healthScoreNoticeItemKey`). It is NOT the schema version
+ * of the report.
+ *
+ * 3 — v1.35.1: green starts at 70 rather than 75, matching the two other
+ *     scores in the app, and the fitness pillar left the catalogue.
+ * 2 — the composite the previous line shipped.
+ */
+export const SCORE_VERSION = 3 as const;
 
 /**
  * The pillars a score can be built from.