I understand the logic behind it.
Your are making the PCM dump a little extra fuel at throttle tip in (like a carburetors accelerator pump) to help with part throttle throttle response. Thus effectively richening up your part throttle settings.
My advise is just use more throttle when you want more acceleration.
Again this will not effect WOT settings at all.
BTW - OBD-II will trim out this mod as it has it's hands all over part throttle settings.