Got my t-rex installed. One problem, and a few notes:
Right now it's all put back together. It will pick up the ball no problem, but won't swallow it. It will spit it back out. Two thoughts. It seems to be getting caught on the edges of the front of the jaw, the screw, and the front teeth. I counter sunk the screw. It's not completely flush, but is lower then if it wasn't. It seems that the metal of the front edges of the jaw are the main culprit. If I bend then out a little, it may be wide enough for the ball to pass over the screw freely.
But the other idea is that maybe I've bent the teeth out too far, and when it picks up the ball, it just isn't able to push the ball back far enough when it bites down.
Also, one thing to note for anyone else, my coil power cable was just over the jaw link. I didn't realize what the problem was. I couldn't get the screw in the back of the Trex to go in, and when I did, it wasn't lined up. And caused so much friction that the jaw link no longer moved. Just make sure to rotate the cable harness mounted to the side of the shoot away from the jaw link.
And another note, when I powered the game back on to get the Trex to stand up, it got about half way, and then froze and started to shutter. I double checked and everything was cleared, it wasn't getting caught on anything. What I needed to do was firmly, but carefully put it back. The mech that razes and lowers the head was just caught in a weird middle where it had no leverage. So just getting it pushed back just a little bit fixed it when I turned it back on.
Attached is a photo on how the trex picks up the ball. You can see the corner that it's caught on. 2015-11-15 16.27.56.jpg