The key is pumping and holding an edge while you ski the pipe. IF your going fast but dont have an edge and or dont pump your trannys right, you are not going to boost. ill see kids drop in going super fast and then end up only boosting like 3 feet. If you know how to pump and hold and edge you dont need to drop in going crazy fast.
Think of the pop as the last part of your pump or finishing your pump motion. When you enter the wall you’re absorbing with your knees then extending after you make it through the tightest part of the transition. That extension should continue and become your pop. Be sure not to pop early by extending your knees too quickly. Think of it as one fluid motion and not a pump then re-set to pop motion.