Taylor the dropping into the swing is looking better, the problem I see is the ball is getting into the swing a bit early, which is causing your feet to run to the line to catch up, then run past the swing which causes the swing to have to be pulled through to catch back up to your feet.
The solution, keep your upper body up, keep your chest facing your target, if your chest points down then the ball will go down too fast. Less upper body tilt will also free up your swing because when you bend your back forward with the ball, then you will want to pull up at the release, when this happens you will lose balance.
Another thing I would like to see you try is lift the ball up and forward with your left hand (the weight of the ball is supposed to be in the left hand at the start), then drop the ball into the swing in a more rounded shape, while still not extending the elbow as you are now, good job on that by the way.
Jason is looking better and better. Tell him not to worry about getting robbed with those splits on seemingly good hits, that is the byproduct of the light weight ball, he through those shots quite well. I think he would benefit from setting up with his head over his right foot, and the ball under his head, as it is he is straight up with the ball in the center of his body, this causes him to have to swing the ball out to the right to get it around his hip instead of dropping it straight under his head.
Next video I want to see a couple of shots from straight behind and from the side, check and see if there is a night video mode on your camera
, it helps brighten up the picture a bit.