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@@ -671,3 +671,21 @@ Full write-up: **`SESSION_2026-06-24_HOPF_DIAGNOSIS_RESREG_FIX.md`**. This pins
 **Protocol (golden seeds are manufacturable).** Reg-light run → save every ≤100 steps → ARPACK dip-screen → warm-start from a certified dip (|λ|<1 at depth). `abl_delay` (queue arm0, --reg_delay 2000) is the fixed-switch approximation; if its switch lands mid-instability the refinement is **engage-on-dip** (res_ema<~2e-3 after step≥1200), not a longer delay. Corollary for the plateau: resreg-from-step-0 may prevent the edge-forged structures from ever forming (safe scratch 2.06–2.24 vs warm-from-dip 1.90).
 
 **Tooling verdicts.** `lead_rho` cold (≤40 iters) under-reads near-unity clusters by 0.02–0.06 and mis-classified s1000/s2400/s2800 as stable — **audits must use ARPACK**; lead_rho is for warm-started in-training tracking only. Hidden `jacreg==0` damping feedback found in the train loop (res-driven c up/down) — would have polluted single-reg ablation arms; new `--noadaptc` kills it (arms updated).
+
+---
+
+## 2026-07-07 — FLAGSHIP FINISH: EP warm 1.7065 (beats every depth-1 BP reference); tolerance wave-1; PAR wall; governor first certifications
+
+- **`ep_warm_fast` DONE: best val CE 1.7065** (warm s2000, hr0.2, t2sel80, adaptive jr, compile). vs tuned BP anchor
+  1.7921 (**+0.086**), vs parameterization-matched BP+EMA twin 1.9632, best of 8 configs (**+0.257** = the measured
+  iteration-depth dividend). From-scratch best remains 2.0119 (self_restart); the spectral-governor arms are the
+  live from-scratch recipe candidates (both dip-certified: s12 @1000 |λ|max 0.9999, s11 @1500 |λ|max 0.9951).
+- **Tolerance wave-1 (warm s2000, 1500 steps, hr0.02):** STATIC imperfections free — wq8 2.6343 (better than base
+  2.6618!), wq6 2.6578, wq4 2.7335 (mild), **wmis 1% 2.6588 (free — fabrication tolerance headline)**. DYNAMIC
+  per-pass force noise = cliff: fn 1e-3..3e-2 ALL pinned at ~3.195 (never improved past the first eval) — the
+  phase-independent-noise / 2r amplification exactly as the estimator theory predicts. Wave-2 (hr0.2 + lock-in)
+  running = the big-nudge rescue test.
+- **The other wall (arXiv:2603.26969, Stern/Liu et al.):** non-reciprocal dynamics ⟹ exact physical gradient
+  impossible in principle (adjoint unavailable to forward physics) ⟹ our Wall-3 (J^T v) is a theorem, with a price
+  list (bidirectional crossbars / CET exemption / PAR bias / mixed-signal) — see HW_RESEARCH_FINDINGS 07-07
+  addendum. PAR bias tax being measured at C512: runs/par_baseline (plain nudge, warm s2000) vs the corrected 1.7065.