RE: Buggy vs Trucks
MM... go get an MT and take a buggy with a low end motor... like mine for instance with a Mach .26 and 13-t gearing. My buggy will blow away any monster truck off the line. Inluding my Mach .26 covenverted T-Maxx. The only reason why monster trucks need those 2 speeds is because of their weight... especially the weight of the tires. For these motors those huge tires make a lot of friction and resistance from that huge rotating mass of tire.
Of course you can make an MT acclerate harder off the line than a buggy but it depends on what your running. Generally any stock 1/8 buggies will have quicker acceleration than any stock MT.
Brake and throttle have a larger effect in the air with the MTs because of those huge tires as well especially if you hit 2nd gear in the air. When you hit the brake your stopping that much more tire giving you a faster nose dive effect... when you get on the throttle again that torque of the heavy tires will pull the front end up harder.