read a test somewhere..difference in pick-up from 0-100 between a car with the throttle controller and without the controller, is negligible, the time u save (from the quicker response given by controller) when u r already flat-out stomping on the accel pedal is negligible
difference is only there if u r comparing acceleration with e.g. 50% open throttle
if comparing 100%, negligible difference already
like u guys already know, its just to give a a 'extra' sensation of power; which even without the controller, can be achieved with just a deeper prod of the accel pedal