Navigation: RealTest Script Language > Syntax Element Details > OptMutatePct Category Settings or Optimize Settings Input a number (default is 25) Description For Genetic mode, the mutation rate — the probability (in percent) that each parameter is reset to a new random value from its list before each test. Larger values explore more aggressively; smaller values refine around the current best. Copyright © 2020-2026 Systematic Solutions, LLC