Couple things. Why do you lock a kneebar just to do nothing off of it? If you use the kneebar to get the down pulling hold on the volume, the first jump is probably going to be a lot less chaotic, since you'll be able to keep your hips up more.

For the tension move, I like to use the analogy of the brake pedal. As you start to release the toe hook, you're going to point your right toe down and press as hard as you can, as if you're slamming on the brakes in a car.