diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 86bc7ede5..e963177b5 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -21408,9 +21408,12 @@ components:
           type: string
           minLength: 1
           maxLength: 60
-          description: "Apple's `HKUnit` string for `value`, captured for audit. The server does NOT convert from it: `value` is
-            read in the unit HealthLog stores the identifier in (`m` for walking distance, `kg` for body mass, `kcal`
-            for energy, `degC` for temperature). Send the sample in that unit."
+          description: "Apple's `HKUnit` string for `value`, captured for audit: the server records it and never validates `value`
+            against it. `value` is read in Apple's own `HKUnit` for the identifier — `m` for a length, `kg` for body
+            mass, `kcal` for energy, `degC` for temperature, a `fraction` for the percent-shaped ones (oxygen
+            saturation, body fat) — and HealthLog applies its storage scaling after that. A waist circumference sent as
+            `0.86` in `m` is stored as `86` `cm`; an oxygen saturation sent as `0.98` in `fraction` is stored as `98`
+            `%`. Send the sample in Apple's unit, not in HealthLog's."
         startDate:
           type: string
           format: date-time
diff --git a/scripts/repair-apple-health-distance.ts b/scripts/repair-apple-health-distance.ts
index be77a3b8f..1843f5362 100644
--- a/scripts/repair-apple-health-distance.ts
+++ b/scripts/repair-apple-health-distance.ts
@@ -84,6 +84,7 @@ async function main(): Promise<void> {
   let totalUpdated = 0;
   let totalSkipped = 0;
   let refused = 0;
+  let wouldRefuse = 0;
   let rollupsPending = 0;
 
   for (const plan of plans) {
@@ -104,7 +105,11 @@ async function main(): Promise<void> {
       continue;
     }
 
-    totalRepairable += plan.repairable.length;
+    // An account with one out-of-range candidate is refused whole, so its
+    // rows are not "would be repaired" — counting them promised work the
+    // --apply run then declined to do.
+    if (plan.outOfRange.length > 0) wouldRefuse += 1;
+    else totalRepairable += plan.repairable.length;
     const first = plan.repairable[0];
     const last = plan.repairable[plan.repairable.length - 1];
     console.log(
@@ -130,7 +135,8 @@ async function main(): Promise<void> {
     }
     if (plan.outOfRange.length > 0) {
       console.log(
-        "      ! this account will be REFUSED — see the reason under --apply",
+        "      ! this account will be REFUSED whole — its rows are not in " +
+          "the count below; see the reason under --apply",
       );
     }
 
@@ -166,9 +172,13 @@ async function main(): Promise<void> {
     apply
       ? `\nDone. ${totalUpdated} row(s) repaired, ${totalSkipped} skipped, ` +
           `${refused} account(s) refused.`
-      : `\nDry run: ${totalRepairable} row(s) would be repaired. ` +
-          "Read the worked examples above and decide before re-running with " +
-          "--apply.",
+      : `\nDry run: ${totalRepairable} row(s) would be repaired` +
+          (wouldRefuse > 0
+            ? `, ${wouldRefuse} account(s) would be refused (their rows are ` +
+              "not in that number)"
+            : "") +
+          ". Read the worked examples above and decide before re-running " +
+          "with --apply.",
   );
 
   if (rollupsPending > 0) {
diff --git a/src/lib/measurements/repair-apple-health-distance.ts b/src/lib/measurements/repair-apple-health-distance.ts
index bd2947586..19cc9364c 100644
--- a/src/lib/measurements/repair-apple-health-distance.ts
+++ b/src/lib/measurements/repair-apple-health-distance.ts
@@ -259,8 +259,9 @@ function outOfRangeRefusal(plan: AccountRepairPlan, factor: number): string {
     `leave the plausible range after x${factor}, so these rows are not the ` +
     "1000x class — the account was most likely re-imported on the fixed " +
     "build, or its archive was never in the affected unit. Nothing written. " +
-    "Check the dry run's worked examples against the account's Health app " +
-    "before forcing anything."
+    "There is no override: check the dry run's worked examples against the " +
+    "account's Health app, and if the archive really was in another unit, " +
+    "re-run with the matching --unit."
   );
 }
 
diff --git a/src/lib/openapi/routes/measurements.ts b/src/lib/openapi/routes/measurements.ts
index 1f28b049b..f138557cb 100644
--- a/src/lib/openapi/routes/measurements.ts
+++ b/src/lib/openapi/routes/measurements.ts
@@ -58,7 +58,7 @@ const batchEntrySchema = z
       .min(1)
       .max(60)
       .describe(
-        "Apple's `HKUnit` string for `value`, captured for audit. The server does NOT convert from it: `value` is read in the unit HealthLog stores the identifier in (`m` for walking distance, `kg` for body mass, `kcal` for energy, `degC` for temperature). Send the sample in that unit.",
+        "Apple's `HKUnit` string for `value`, captured for audit: the server records it and never validates `value` against it. `value` is read in Apple's own `HKUnit` for the identifier — `m` for a length, `kg` for body mass, `kcal` for energy, `degC` for temperature, a `fraction` for the percent-shaped ones (oxygen saturation, body fat) — and HealthLog applies its storage scaling after that. A waist circumference sent as `0.86` in `m` is stored as `86` `cm`; an oxygen saturation sent as `0.98` in `fraction` is stored as `98` `%`. Send the sample in Apple's unit, not in HealthLog's.",
       ),
     startDate: z.iso.datetime({ offset: true }),
     endDate: z.iso.datetime({ offset: true }),