Real P&R: WNS +0.068ns (up from +0.030ns), 0 failing endpoints, 5437 LUTs, 16 DSP48E1. Confirms EXP-0081's "register the select bit at request time" design genuinely kept the fix off the critical path. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MUG92aM9m68TRc4rG55BcC