From an armchair standpoint, if this guy was a buddy and asked me on the range for ideas, I would be tempted to say he does not clear the right hip due to his address position. I would try to get his wrists level at address with the right arm more on plane. Perhaps narrow the stance a little and focus on clearing the right hip both back and thru. I also think he should go back to a 44 inch driver, that would help that setup. Of course he would be insane if he listened to me. I do not think his issues are swing related. His issues are physical. He used to be lean and whippy. The muscle has put extra strain on his frame. Like putting a huge engine in a frame not built for it. Snead snapped his knee and hip as much as Tiger and never had the physical issues.