@Than_Bogan good drill. Keep thinking of driving the right knee forward, don't think of up. That and the straight left arm will increase the energy into the pole.
Another drill that is really good is a two step plant with a coach pushing you forward at the shoulder blades. Keep both arms straight and keep left leg back while you elevate a couple feet off the ground. Ideally someone strong that can hold you up for a few seconds, then come back down.
Just like skiing you want to create energy/angle rather than trying to get to the bar/ball immediately.