Refine x2 at LOD4-8 saves 13.6% but breaks the 1 px rule, shading and swaps, and opens holes;
station x2 and ray removal open connector gaps. Not for assembler/world. See Linux15/REPORT.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CSFYgsdW8ejZSyiMf4qRSX