[EdZ]

Yoda, what should you do if you are unable to finish swivel? In my case, I cannot rotate my left forearm so that my palm faces the sky. I get almost zero movememnt from the handshake position.

Assuming that I hinge correctly, how will having no finish swivel be effecting my ball flight and what might I do to make the best of my situation? I guess at the moment my left wrist just bends earlier than most and maybe so to the elbow.

As a starting point, make sure you can fully pivot through the shot, turning your left foot more 'open' as need be. As long as your pivot/torso can move through, you can minimize the issue of not having a full swivel. This is an area where many falter due to lack of flexibility or improper lead foot position.