Have you considered standing a little closer to the ball? You seem to be reaching for it to me.
If you look at the frame in your down the line pics where your left arm is way out away from you. Then in the next frame you do some fancy manovering to keep the club inside your hands. I think that's where the arch is coming from . . . you have to do some weird stuff with your hands to get the sweetspot on the ball instead of the hosel. At impact your shaft is close to vertical to the ground. With the shaft that steep any roll you have in your left hand is going to make the face shut fast. So you probably arch it to slow the face down.
With the wrist that arched you are sacrificing a bunch of #2 angle (wrist cock).
Have you ever hooked it bad?
Notice how much more "IN" Hogan's hands are and how his arms work much closer to his body. He's using a flatter plane but he has a much steeper angle of attack.
You stay in your angles well. I'd start by creeping closer to the ball and see what happens.
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