For 2026 preemerge programs, the biggest change is adjusting residual stacking based on mapped escapes from 2025. Fields showing early waterhemp pressure now get layered modes instead of higher rates. One example was pairing a Group 15 residual with a lower rate Group 5 instead of pushing a single product. Control improved without adding cost. The tweak worked because placement mattered more than volume. Local resistance data guided every decision.