1) Connally's wrist is not exposed to being hit at the time of the head shot
The back of Connally's right wrist is directly facing the head shot, is it not?
2) CE 567 AND CE 569 are not small fragments. Those were the only two sizable fragments recovered in the limo. One struck the windshield. The other struck the chrome piece. Whatever happened to the two large fragments that you are arguing for?
I'm not arguing for two large fragments or two small fragments and how do you know what fragments caused what damage to the limo? The inside of the limo was sprayed with fragments, you can tell this by the way Connally dives to his left and the two agents up front duck for cover. Pay attention to the space in between JFK and Connally in the head shot animation. At the time of the shot a spray of material crosses that space at high speed. Neither of us has a clue what size fragments at what speed would be required to cause the damage to Connally or the car.
3) What happened to the bullet that entered his back and exited his chest? Where did it go after exiting his chest?
My theory is that it had lost a lot of momentum passing through both men which is why it pulled his jacket forward so dramatically rather than just pass cleanly through it. If it had any serious momentum left it would have passed straight through his jacket and slammed into the seat in front. Which it didn't. So I suspect it didn't make it all the way through the jacket, it somehow got caught in his clothes and he took it to Parkland hospital and it fell out on a stretcher and blah, blah, blah.
It's the magic bullet. It can do what it wants.