Bad Shed on a Cinny

I have a collection of only 7 ball pythons. All of which shed regularly. The humidity is kept between 50-60% in the snake room. I have had no problems with shedding on all of the ball pythons except the Cinnamon Pastel. He has shed in small parts it's approx 2 weeks since the skin started to come off. A lot of the old skin has come off but still a lot of the old skin is still on.

Is it necessary to help the snake along with the shed by soaking or can I let him be? Would there be a reason why his shed is so bad compared to the other 6 snakes?

These snakes are kept in a rack on Aspen.

You don't need to worry about bits of shed stuck on them unless it's completely encircling the body.. you don't want to constrict the blood flow or anything (especially tail tips are susceptible)

Try making a humid hide for him made of moss, that should help out a lot, also is he in a aquarium style tank or a tub?