Jeff,
You’ve got a Specktrum don’t you? Set the throttle for dual rate. High rate full throttle and the low rate the max speed you want. That way when you get 4 or 5 hits and the tank slows down you flip to the high rate and get some speed back.[sm=eek.gif][sm=rolleyes.gif]
Just kidding...

But you can use the dual rate or the end point adjustment to tone down max speed.