Ok, so this may be semi stupid, but I'm being pretty sincere about this. If you're training for MMA or to have competent self defense, you should train with slams. I know it sounds crazy, but you can "pull slams" the same way you pull punches in boxing. In my limited opinion, I know that BJJ is super cool for little guys to beat big guys. But let's be honest. If mighty mouse put me in a triangle, I'm going to powerbomb his ass through a sidewalk over and over until he lets go or dies. I'm exaggerating, but you get my point, I hope. Bigger opponents have the capacity to do major bodily harm with a solid slam. If you don't know how to deal with it, you're screwed. So all I'm saying is, maybe you should consider your strategy.