I would like to hear the different techniques drivers are using for jumping (Keeping the buggy's nose up or nose down & or level) as well and keeping the buggy's from rolling over on one side or another during the jump? Also what are some of the different techniques for throttle control for going over and or threw moguls at high speed?

Fly it like an airplane, the throttle adjusts up or down, the steering does left or right. Some buggies are more manuverable than others in the air...so you'll just have to find a big jump so you can practice your air time...

Leave the jump off-throttle. That makes it easier to fly straight without needing to correct. If you do just hit the brakes to get the nose down and blip the throttle to bring it up.

Honestly there is no specific technique. Even if you hit the same exact line everytime it just takes some feeling to do it but no techniques. Every single jump and bump is going to take a different approach and you'll just have to experiement with being on throttle, off throttle, slight throttle, or brakes. Just try to hit jumps as straight as you can... hit it when your turning or the buggy is carrying some sideways momentum and it will really screw you up in the air.

one simple rule always seem to work for me.......PUNCH IT