Close up to show it don't move...
Good video and a lot of good things BUT the rear video reveals what I spoke about. The space between the arm and side and the lead. Compare to many pitchers from the same view in model pitchers. I think that's a big deal.
Rear leg is acting like an anchor and sucking away speed. Not much push and then it is just along for the ride.
~ I see your DD driving with maybe too much emphasis to get open, rather than to drive forward. I like the cue of driving hard to the target with the backs of the hands and stride toe. I also like the thought of driving squarely towards the target with the hips/shoulders, but letting the arm circle open up the torso naturally.
I believe you'll find that JS addresses this somewhat differently in the Drive thread, but I see your DD driving with maybe too much emphasis to get open, rather than to drive forward. I like the cue of driving hard to the target with the backs of the hands and stride toe. I also like the thought of driving squarely towards the target with the hips/shoulders, but letting the arm circle open up the torso naturally. Compare these shots for an example:
View attachment 7230View attachment 7231View attachment 7232View attachment 7233
Notice how the hips, shoulders and stride toe seem to be driving to the target vs trying to get open?
While I prefer the mechanic as I described, folks like Mowatt, Osterman and Nevins have demonstrated that an emphasis on getting open can be a possible (although illegal) advantage.I believe popping open too early reduces the explosiveness of the drive.
Don't ever let your pitcher wear a fluorescent yellow shirt either! Boy that was a long/scary hour...