[WizenedEE]

It really depends on how you program it -- if you multiply every axis of every joystick by the throttle value, they all get scaled down. If you only do it to one or two joysticks only those get scaled down.

You could also do something where the L button speeds it up (by something like 10%) and the R button slows it down. Or you could just have a constant multiplier of something like .4