My very first post here so hi everyone

I'm at 22 h/c and have just started playing again reasonably regularly after 15 years of "drought". That's the disclaimer for what I'm about to write.

Your swing looks quite similar to mine was a while back in many respects so I'm learning a lot from this thread too. (still lots to work on including the table drill and the impact drill)

What this similarity also does is make me look at the same things I'm working on.

What I think I saw is a disconnection of the hands at the top of the backswing --- particularly with the driver. It looks like the heel of your bottom hand leaves the grip at the top (as mine did until recently). This will result in inconsistency if nothing else. Tightening the grip won't necessarily help here (it made things much worse for me as it caused tension in the hands and forearms leading to incomplete release --- replaced one problem with another one).

The other comments from pnearn above also look right on (again to my untrained eye). I'd also look at the flex (or lack of) in the left leg.

But like I say --- untrained eye and still working on loads of problems mself. Hope I've been of some help though.

WahnamCH