Exact under uniform odd 2-adic residue measure for finite valuation words. This is not a proof for a single deterministic orbit.
Native/exact: integer trajectories, valuations, residue-word identities, finite scans. Mixer projection: how non-native eyes react to Collatz-derived features. Not evidence: a projection does not become a theorem because many eyes light up.
Only α=3, β=1 is the Collatz map. Other settings are perturbation probes.
Bias is a visualization perturbation of the contraction threshold. δ=0 shows the native leading condition A>m log₂3.
This grid intentionally changes the map. It is for structural sensitivity, not evidence about Collatz unless α=3, β=1.
Sliders change the mixer projection only. Native eye contracts and source statuses remain unchanged.
Scores combinations for agreement with hard-case features while penalizing redundant family overlap. This is discovery routing, not proof.