A single naive run can luck into the TP4 optimum at iter 1 (gpt-5.4 free-form guess), which weakens the single-curve story. Run naive 2 more times on the same real-output substrate to capture the fail/slow/lucky spread -- the actual finding. Waits for ABLATION12_DONE so it never contends for GPUs with the main pair. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>