So.. I might have done a bad thing. After my 2nd meeting with my PT, I went out and threw.
However, I only threw like 30-40 discs and it was just to confirm some suspicions, which I did. After watching Lizotte, Wiggins, and Gurthie at the Texas Open, I noticed how at the apex of their throw you could really see them unleashing that right shoulder, as if trying to knock down a door with it and I realized that I think by concentrating to much on the line that I'm trying to pull, I've been initiating the throw with my forearm/hand, as if trying to pick up a paint bucket without using your shoulder or knees.
I'm fairly sure that's the source of my tennis elbow.
Furthermore, I realized that trying to pull the line tends to make me release higher with my shoulder, causing the shrugging and the wrist roll... but if I think of the throw like wiping a table top just below my chest with a cloth as if I'm cleaning it, I get a much better release. That is, worrying about keeping my hand low is a much easier way to get my pull to work, physically, than worrying about pulling down a straight line, because if you get the disc out away from your body in the backswing and then lead with that shoulder (of course, the hips have to go in front of the shoulder, but the shoulder is my focal point to get emphasis off the forearm), then my pull through is straight.