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Written from configs/cover-traffic.yaml: the rate swept over three decades against three release delays, each timeline paired with the epoch emission budget. The finding that shapes the section is that mixing never happens. At one message per second a relay holds 0.0014 messages and never more than two; even 256x the rate reaches only 0.39, matching Little law exactly. So the anonymity set is entirely blending -- the broadcasts a relay saw between releases -- which follows rate*(2M+1)/3, twice the mean hold. Measured within ~1% over most of the range. That makes delay the cheap lever: both knobs enter linearly, but bandwidth is paid on every link while delay is paid once per hop. An anonymity set of 100 costs 42.9 msg/s at a 3s delay and 4.9 msg/s at 30s. The quota ceiling is the hard edge. A node proposals must fit its emission budget, capping stake at ln(1-q)/ln(1-f) of INFERRED stake -- about 0.1% at the baseline rate once Poisson fluctuation is allowed for. A 9.5% holder overruns by ~65x and is distinguishable by emission count alone, before any path is captured. Two existing sections needed correcting as a result. 3.6-3.7: with cover traffic running, catching an emission is not catching a block, and the large stakers those sections analyse sit one to two orders of magnitude above the quota ceiling, so their binding exposure is the quota rather than the cascade. 5: the timing- correlation adversary was deferred for want of cover traffic and is now unblocked. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>