C's gate-3 finding, answered in the file it names: _applyPonding never reads
porosity, so cloth and membrane pond identically while setFabric's comment and
the cloth blurb promised shedding. Ruled, not silently fixed: every pinned
cloth number (backyard separation, the section-7 gates, C's storm_06 pins, the
S15 zero-delta lattice) was measured under fabric-blind ponding, and a pond-
physics change mid-TEETH moves them all against the one-variable law. The fix
(porosity-scaled intake + through-weave leak) wants its own gate with a full
gauntlet re-measure; C's soaker is its test case. setFabric's comment carries
the ruling, _applyPonding carries the warning, the cloth blurb drops 'sheds
water' (a player-facing claim the sim doesn't cash).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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