follow stab55_16, 1. order strict colored probes by 16 parity buckets; 2. reduce large-c128 source colors 22 -> 16 and C=4 calls 132 -> 96 per level; 3. record cold c128 C=4 double setup 974 -> 585.28 s with unchanged residual; 4. update report and solver/benchmark skills. [opencode].