diff --git a/TODO.impl/03-headwise-muon.md b/TODO.impl/03-headwise-muon.md
index 92c9b96..1e792e2 100644
--- a/TODO.impl/03-headwise-muon.md
+++ b/TODO.impl/03-headwise-muon.md
@@ -32,6 +32,14 @@ not an architecture change — single-variable, cheap to ablate.
 - [ ] Flag-on path exercised end-to-end in a smoke run
 - [ ] TODO.arabic/18 updated to point here
 
+## VERDICT (2026-10-01): NEGATIVE — separated. 4.8164 vs 2.1's 4.5701
+
+Full-set windowed protocol, teacher 2.2890 reproduced exactly, labels
+e70ce991. Paired between-students bootstrap on final_preds: delta
++0.2267pp, CI95 [+0.016, +0.411], p=0.017. Head-wise Muon (positive
+at DeepSeek's 671B) is significantly HARMFUL on a 300M byte-student
+distillation — scale-boundary recorded. 2.1 stands.
+
 ## Status
 
 - [x] Module built (gpu/muon.py: add_headwise_group, per-slice
diff --git a/TODO.impl/06-sinkhorn-update.md b/TODO.impl/06-sinkhorn-update.md
index 7718d56..1bb8233 100644
--- a/TODO.impl/06-sinkhorn-update.md
+++ b/TODO.impl/06-sinkhorn-update.md
@@ -34,6 +34,13 @@ carries to the row/col normalizations here if magnitudes get small).
 - [ ] Spec entry (off by default) for the optional measurement run
 - [ ] No change to any shipped run's reproducibility
 
+## VERDICT (2026-10-01): FLAT — 4.5547, not separated from 2.1's 4.5701
+
+Paired delta -0.0903pp, CI95 [-0.267, +0.069], p=0.858. The
+Sinkhorn-balanced embedding update is indistinguishable from AdamW on
+the tied tables at this scale. The module stands (Engram side-opt);
+the recipe lever is closed.
+
 ## Status
 
 - [x] Implementation (gpu/sinkhorn_update.py: SinkhornUpdate +