diff --git a/src/app/insights/values/[type]/page.tsx b/src/app/insights/values/[type]/page.tsx
index e1915e2a3..fd1ff6556 100644
--- a/src/app/insights/values/[type]/page.tsx
+++ b/src/app/insights/values/[type]/page.tsx
@@ -47,20 +47,21 @@ export default function InsightsMetricValuesPage({
     <SubPageShell
       title={t("insights.subPage.valuesPageTitle", { metric: metricLabel })}
       description={t("insights.subPage.valuesPageDescription")}
+      backLink={
+        <Button
+          asChild
+          variant="ghost"
+          size="sm"
+          data-slot="metric-values-back"
+          className="-ml-2 w-fit"
+        >
+          <Link href="/insights">
+            <ArrowLeft className="mr-1 size-4" aria-hidden="true" />
+            {t("insights.subPage.valuesBack")}
+          </Link>
+        </Button>
+      }
     >
-      <Button
-        asChild
-        variant="ghost"
-        size="sm"
-        data-slot="metric-values-back"
-        className="-ml-2 w-fit"
-      >
-        <Link href="/insights">
-          <ArrowLeft className="mr-1 size-4" aria-hidden="true" />
-          {t("insights.subPage.valuesBack")}
-        </Link>
-      </Button>
-
       <MeasurementList lockedType={type} />
     </SubPageShell>
   );
diff --git a/src/app/insights/workouts/[id]/page.tsx b/src/app/insights/workouts/[id]/page.tsx
index d648a8b06..f55155ff5 100644
--- a/src/app/insights/workouts/[id]/page.tsx
+++ b/src/app/insights/workouts/[id]/page.tsx
@@ -40,19 +40,21 @@ export default function InsightsWorkoutDetailPage({
     <SubPageShell
       title={t("insights.workouts.title")}
       description={t("insights.workouts.description")}
+      backLink={
+        <Button
+          asChild
+          variant="ghost"
+          size="sm"
+          data-slot="workout-detail-back"
+          className="-ml-2 w-fit"
+        >
+          <Link href="/insights/workouts">
+            <ArrowLeft className="mr-1 size-4" />
+            {t("insights.workouts.detail.backToList")}
+          </Link>
+        </Button>
+      }
     >
-      <Button
-        asChild
-        variant="ghost"
-        size="sm"
-        data-slot="workout-detail-back"
-      >
-        <Link href="/insights/workouts">
-          <ArrowLeft className="mr-1 size-4" />
-          {t("insights.workouts.detail.backToList")}
-        </Link>
-      </Button>
-
       {isLoading ? (
         <div data-slot="workout-detail-loading" className="space-y-3">
           <Skeleton className="h-20 w-full rounded-lg" />
diff --git a/src/app/settings/sources/page.tsx b/src/app/settings/sources/page.tsx
deleted file mode 100644
index 198bb3d30..000000000
--- a/src/app/settings/sources/page.tsx
+++ /dev/null
@@ -1,23 +0,0 @@
-import { permanentRedirect } from "next/navigation";
-
-/**
- * v1.4.34 IW-D — `/settings/sources` permanent redirect.
- *
- * The Sources settings section was merged into `/settings/thresholds`
- * (now titled "Targets & Sources" / "Zielwerte & Quellen"). The two
- * editors share the same per-metric configuration shelf and reading
- * them side-by-side on one page matches how a user actually thinks
- * about metric configuration ("for this metric, which sources do I
- * trust AND what range counts as healthy?"). Per
- * `.planning/research/v1434-r-2-carryover-scope.md` §7 and
- * `.planning/round-v1433-audit-menu.md` §7.1 (item 3).
- *
- * 308 (`permanentRedirect`) keeps the request method intact so any
- * external system that POSTs (none today, but cheap insurance) follows
- * through with its original method. Existing bookmarks, iOS Settings
- * deep-links, and any docs that referenced `/settings/sources`
- * continue to resolve.
- */
-export default function SettingsSourcesRedirect(): never {
-  permanentRedirect("/settings/thresholds");
-}
diff --git a/src/components/insights/__tests__/sub-page-shell.test.tsx b/src/components/insights/__tests__/sub-page-shell.test.tsx
index 46394c46d..07653ce87 100644
--- a/src/components/insights/__tests__/sub-page-shell.test.tsx
+++ b/src/components/insights/__tests__/sub-page-shell.test.tsx
@@ -92,6 +92,23 @@ describe("<SubPageShell>", () => {
     expect(probeIdx).toBeLessThan(headerEnd);
   });
 
+  it("renders the back link above the heading when supplied", () => {
+    const html = render(
+      <SubPageShell
+        title="Weight"
+        backLink={<a data-slot="back-probe">back</a>}
+      >
+        <span />
+      </SubPageShell>,
+    );
+    // v1.8.7.1 — the back-nav leads the page, above the heading.
+    const backIdx = html.indexOf('data-slot="back-probe"');
+    const headerIdx = html.indexOf("<header");
+    expect(backIdx).toBeGreaterThan(-1);
+    expect(headerIdx).toBeGreaterThan(-1);
+    expect(backIdx).toBeLessThan(headerIdx);
+  });
+
   it("mounts no coach launch surface when coachLaunch is omitted", () => {
     const html = render(
       <SubPageShell title="Pulse">
diff --git a/src/components/insights/sub-page-shell.tsx b/src/components/insights/sub-page-shell.tsx
index e12d34a60..d4b108dab 100644
--- a/src/components/insights/sub-page-shell.tsx
+++ b/src/components/insights/sub-page-shell.tsx
@@ -31,6 +31,15 @@ import { cn } from "@/lib/utils";
 
 export interface SubPageShellProps {
   title: string;
+  /**
+   * v1.8.7.1 — optional back-navigation control rendered ABOVE the page
+   * heading, the standard back-nav placement. Detail/values sub-pages
+   * (`/insights/values/[type]`, `/insights/workouts/[id]`) pass their
+   * "back to …" link here so it leads the page rather than trailing the
+   * content. Omitted on the mother page and category pages reached via the
+   * tab strip.
+   */
+  backLink?: ReactNode;
   /** Optional accent badge (status, dataset coverage, …). */
   badge?: ReactNode;
   /**
@@ -108,6 +117,7 @@ export interface SubPageShellProps {
 
 export function SubPageShell({
   title,
+  backLink,
   badge,
   description,
   explainerMetric,
@@ -142,6 +152,8 @@ export function SubPageShell({
 
   return (
     <div data-slot="insights-subpage" className="space-y-4 md:space-y-5">
+      {/* v1.8.7.1 — back-nav leads the page, above the heading. */}
+      {backLink}
       <header className="space-y-1.5">
         {/* v1.8.6 — the heading row pins the Coach icon top-right while the
             title / nudge / badge wrap together on the left.