[Burner]

Is it really possible to keep the right wrist completely level throughout the swing while cocking the left wrist? Doesn't the right wrist cock up a bit as well? I've tried to keep my right wrist level throughout and just can't. Unless anyone has any suggestions how to improve I'm not sure I physically can do it.

I think you are maybe looking in the wrong place for the real cause of your problem.

Its my bet that you are actively over-cocking your left wrist.

Just hold your left arm straight out in front of you and parallel to the ground, fingers pointing directly away from you, the back of the hand facing your target and the palm facing away from the target.

You should, at this point find that the the top of your thumb and and forearm are basically in line - or "level".

Now just make a fist. Viola! Your wrist is cocked, nothing more and nothing less. You do not have to add to it and cock your right wrist in the process.