Hard TP at N×risk beats the trail on all 2024+ windows but the grid is
monotone to 3R (trend artifact) and M15 rr20 goes negative in 2021+2023
with doubled DD — trailing exits stay. Flag is research-only; its
Module 22 tests land with the next commit (shared test_all.py).
Claude-Session: https://claude.ai/code/session_017mbXs9HRawZhD1uZ3ze7zQ