Hey Terrance!
I've had similar situation with GTPs before. A good idea would be to soak him again for about 2 to 2.5 hours in warm water in a rubbermaid container (make sure the top is secure so there is no escape. Make sure the water isn't too deep either - if it is, he'll swim the entire time and can die from drowning or exhaustion. The water only needs to be deep enough to cover him when on the bottom. Check back often.
After soaking, I take my snakes out and, depending on their temperament, will hold them behind the head with one hand, supporting the body with my arm and hand, and remove the shed with my other hand. If shed stays stuck on tail ends and eyes (make sure to check these places), it can cause blindness or the tail tip to break off. When removing shed around the eyes, you can use a q-tip gently and when removing shed around the tail you need to be careful not to pull the tail and cause spine damage - gently roll away the stuck shed. most of the time if they're soaked long enough, the stuck shed will be falling off quite easily - this has worked great with new ATBs that I've gotten with a complete stuck shed.
Hope this helps!
Chris