f6-out-of-sample-RESULT.md left three failures unexplained beyond "n=2 wasn't
enough". Reviewing what's already decoded: two of the three (the ptcopyright/
parent ramp ratio, the sweep-leads-plate lead) fail in the SAME direction
(0.75x, 0.71x of predicted), and f6-unit10 already established the sweep and
plate families are gated by separately-triggered parents -- a ratio across
two independently-triggered elements has no structural guarantee of being a
constant, unlike a ratio internal to one element family (which is exactly
what the passing three checks are). The gross mislabeling that caused the
ORIGINAL 1.7x conflict was fixed two days before the prereg was written, so
that's ruled out as the cause here; whether the cross-group phase genuinely
varies boot to boot vs. an artifact in the frame-based ratio math is still
open, and needs more captures to tell apart -- filed as a follow-on, not run
here.
check_labels.py conflated two different claims under one "N LABEL(S) DRIFTED"
verdict: identity checks (which element -- clock-free, still 3-for-3 out of
sample) and timing checks (a cross-element ratio and a self-consistency curve
fit -- 0-for-2 out of sample). Split into two reported groups; only identity
gates the exit code now. Tolerances untouched -- widening them to pass f6c
would be tuning the check on the case that failed it, the same error class
already named twice in this corpus. Verified with synthetic data shaped like
the real f6c residue (3/3 identity, 0/2 timing, exit 0) and confirmed the
selftest's injected mislabel still fails an identity check (exit 1) -- no
capture exists in this fresh container to run it against real logs.
The withdrawn sweep->plate lead (0.138-0.141) stays withdrawn. Nothing here
reinstates a number.
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