I have few things to say J. Brown.
The first is, why are you so far back? There's no reason to be that far back on the approach. Especially with only a 5-step approach unless the approaches at your center are really reallly short.
Second, I think you timing and footwork are off. Even better is that it looks inconsistently off. I can't be sure without a side view. However, to me, it appears that you can't do what you want to because you have inconsistent timing. On some balls you'll start the ball on the 4th step but you appear to be charging the line. On others you'll wait until you've started your third or have your third step down before you have the ball in the backswing. These timing issues I believe are messing up whatever you're trying to do because you are getting to line it looks to me before the ball and that's why your swing looks so tense. Because you are pulling the ball through the swing to catch up. But again, I can't say for sure without a side view.
Lastly, how's your fit on your equipment? I only ask because it didn't look like you changed balls for those spare shots, and it looked like for both shots, the ball fell right off of your hand. If that is the cause and you have to grab the ball to hang onto it. That could also be effecting your timing thus impeding the improvements you are trying to make.
Aside from that every thing else looked pretty good. I'd say maybe get them shoulders a little more square but you were playing so angular that it's a bit of non-issue. Just one of my personal things. No biggie.
Hope that helps,
The Demolition Man