diff --git a/docs/env_reference.md b/docs/env_reference.md
index 9faa728..7b364f0 100644
--- a/docs/env_reference.md
+++ b/docs/env_reference.md
@@ -338,9 +338,17 @@ Defaults read in `the_floor_is_lava_ring.nim:116-133`.
 the **code defaults are `10.0` / `15.0`** (commit `7f6ccfb`). The code is the
 truth.
 
-**Ring mover is NOT the default and should not be shipped as-is:** it had the best
-offline hit rate of anything measured, but it halves engagement range and **halves
-survival** (round wins 16/49 → 6/49, p=0.012) — a glass cannon.
+**Ring mover is NOT the default and should not be shipped as-is.** It had the best
+**LIVE** hit rate of anything measured (20.28%, server-side event sidecar ground truth), but it
+halves engagement range and **halves survival** (round wins 16/49 → 6/49, p=0.012) — a glass
+cannon.
+
+**CORRECTION (see `docs/offline_harness_trust.md`):** this line previously claimed the ring mover
+had "the best offline hit rate". That was **wrong — the ring mover was never measured offline at
+all**; the offline harness scores *guns*, and has no movement driver. So this was **not** an
+offline-vs-live calibration failure (which is how it was repeatedly described). It was a **metric
+mismatch**: a movement arm judged on hit rate instead of damage/run and round wins — and hit rate
+is exactly the metric that hid its collapse.
 
 ## 5. Ramming