The standard recommendation is to reset the pcm every time you mod anything. I started my post with "No" and that's the real truth. Sorry about that. Any slight adjustments necessary should be made instantly. It's really your driving style that the PCM adapts to, which is expedited by a reset.
05 ZX4 ST - parts donor. Daily driver until a rock found the oil filter and locked the motor.
08 S Coupe - autocross toy. Less weight and more tire.
06 Ranger - lowered commuter and parts hauler.