In Auditable Strict-Parity Evaluation of Prerequisite-Graph Retrieval for RAG under Leakage Controls, latency is measured under a fixed protocol designed to remove caching and warm-start confounds. The protocol requires Apple M4 Max CPU-only hardware, disabled caches, a warm-up phase, 200 measured queries, and three repeats of the full measurement. The reported $\pm$ values represent the mean within-repeat per-query standard deviation taken from the cited microbench JSONs. Thus, the dispersion captures run-to-run variation within a repeat rather than across-repeat variance. Reporting latency under this robust CPU-only protocol makes the timings directly comparable across the evaluated retrieval systems and datasets.