I am using the Futaba BLS 451's in buggy and the BLS 351's in truggy. In throttle I take vehicle weight in to consideration. I like the brakes to grab and hold nice and strong. In the buggy, you don't need a lot but more than you would in a truggy. I probably have gone overkill in the truggy but if it has it, and you don't use all the torque, I think it'll end up being easier on them which will give you more life. I do think there is overkill in both ways. You don't need anything like the one Airtonics servo of a 0.06 transit. For me, I like to find the 0.10 mark in the buggy and .13 in truggy. 150in/oz for buggy and 200in/oz for truggy.