He is free falling, not rocket propelled. He is not going to experience more than 1 G. Gravity and friction are the only forces involved.
During de-acceleration he may have greater force through his harness, but before.
The G forces I was refering to were those that a spinning body would be subjected to. I did not make that clear in my post. As long as he is stable it will not be a problem. If he starts spinning it could be a problem.