select = routing precision = hack_supp - solve_supp on the knob (held-out val,
knob-ON vs knob-OFF, same split). 1.0 = removes all hacking at no solve cost.
Sanity: vanilla=0.00 (no knob), base=blank (no knob-on signal), per-token=0.96.
hack_supp = (vanilla - hack)/vanilla ; solve_uplift = (solve - base)/(ceiling - base),
the floor->ceiling normalized fractions (ceiling provisional=paper 0.223, FIXME job 24).
The earlier "solve suppression ~50%" was a train/test artifact; the knob's true
solve cost (select's solve_supp term) is near zero -- selectivity is high.
Co-Authored-By: Claudypoo <288921227+claudypoo@users.noreply.github.com>