360 arrays vs NYGC 30x SV: all samples OK (K-027 gate fix), PASS precision
DEL 44 % / DUP 57 % (first run 39 % / 34 % with filters ignored), 61 % without
the one excess_events array; rare DEL sensitivity 30 %; LOH replicated 85 %.
m7g.4xlarge spot, 17 min. docs/validation/V2_cn.md, K-027.