With the 352 disproof, Claude Opus 5 has now used the caterpillar family construction on three different conjectures: 349 (n=8c+4, deficit n/16), 340 (n=24c+2, deficit c−1), and 352 (n=8c+6, deficit ⌈(c−1)/2⌉). All three share the same proof architecture: caterpillar backbone with pendant attachments, open packing certification to establish domination number, and linear bound analysis showing growing deficit. The technique's applicability across conjectures with different claim structures (total domination, independent domination, eccentricity-based bounds) suggests it is a general-purpose tool for tree conjecture refutation.