This turn felt pretty good in terms of maintaining speed and not losing the wave, but I still feel like I am fighting a counter rotation in the upper body.

My hands are going over my head almost like they would if I slipped on a wet floor or something.  

I think I am rushing the bottom turn and bringing my back arm forward too early, but open to any other pointers.

Tried to zoom in on the turn but might be too blurry.