Hard time shedding

[Solid Snake]

Im using coconut subtrate and i think it isn't holding enough moisture. today i went to check up on my BP and he only had his head and neck area shed off, he tried to get the rest of it all off but it wouldn't come off, i completely drenched the warm side of the area of his enclosure with water so the humidity is 100% is that a good idea? I think i'd have to change the substrate after this...