keep the handle in closer to ur hips and stand tall when u come off the wake this will give u more air and able u to spin faster. also make sure ur not flattening ur board out at the top of the wake. cut all the way through it.
I agree with the above, but also, try taking a shorter cut. It will force you to edge all the way up and through the wake, keeping the line tight the whole time. Line tension is key.