I do this kind of inside leg trip thing... don't know what it's called, but I saw some guy do it in competition videos like 3 times. It looked like a shitty football tackle (and I can do a shitty football tackle) so I gave it a shot. I hit it in wrestling class on some guys that I usually can't take down and ended up liking it. Still haven't tried that in competition. In comps I usually try to make contact and then drop underneath for butterfly or some kind of guard. If they shoot on me I try to snatch 100% and get a sweep.