results: close feedback-first C2 recovery

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diff --git a/RESULTS.md b/RESULTS.md
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--- a/RESULTS.md
+++ b/RESULTS.md
@@ -405,6 +405,30 @@ targets do not by themselves cure the coupled A/W basin.** The next bounded deve
 is temporal: calibrate A while W is held fixed, then open forward plasticity and maintain A with
 the already selected low-query simultaneous schedule.
 
+### Feedback-first timescale development screen (task seed 0 only)
+
+The next frozen screen prefixed the original context-SDIL K1/e4 simultaneous joint phase with
+`{0, 100, 400}` A-only layerwise K4 calibration minibatches. W, biases, and the output readout were
+bitwise frozen during the prefix; its isolated RNG and restored loader state kept the subsequent
+joint-phase randomness and minibatch order matched. Advancement required mean d4 validation of at
+least 90%, at least 2/3 positive depth gains and lesions, a mean lesion drop of at least 2 points,
+and all finite losses.
+
+| A-only steps | depth | validation acc (%) | depth gain | d4 lesion drop | d4 work / ordinary |
+|-------------:|------:|-------------------:|-----------:|----------------:|-------------------:|
+| 0 | 1 | 66.733 ± 6.147 | — | — | — |
+| 0 | 4 | 78.633 ± 24.866 | +11.900 | +27.367 | 1.8x |
+| 100 | 1 | 63.850 ± 1.576 | — | — | — |
+| 100 | 4 | 81.867 ± 8.779 | +18.017 | +14.533 | 2.5x |
+| 400 | 1 | 64.300 ± 3.695 | — | — | — |
+| 400 | 4 | 82.450 ± 14.226 | +18.150 | +25.367 | 4.7x |
+
+Both nonzero prefixes produce positive gains and lesions in 3/3 seeds and substantially reduce the
+zero-prefix variance, so timescale separation addresses part of the basin problem. Neither reaches
+the frozen 90% d4 threshold; **no prefix is eligible and task seeds 6--8 remain untouched.** Final
+teaching directions are often strongly aligned even in mediocre runs, pointing next to regression
+gain/tracking over the moving trajectory rather than simply adding vectorizer capacity.
+
 ## Paper-faithful non-backprop baselines
 
 `PETITE` in the initial request is treated as **PEPITA**. Implementations and hyperparameters were