I was thinking this method might not work, since the snake doesn't make enough contact with the top of his head or neck to the damp fabric. If that was my snake, I'd cuddle him on my lap for a while & either keep misting the top of his head/neck, or see if I could sneak a little wet piece of cloth-paper towel-or makeup sponge pad onto the area(s) for a while, then manually peel it off. But that's me- I'm a "butt-insky" type, partly because in my experience, time only makes shed skin stick on harder with possible damage to the good skin underneath. So I help. Your call though.I think some members are in the "wait & see" camp too?
FYI- the head/eye caps/neck & tail tips are the areas snakes have the most trouble with, & when they fail to shed all at once, they often need help to get these areas done. When it works as it's supposed to, they rub their face around the jaws, peeling back the top of the head, & the chin goes back underneath, & they slowly slide forward while the old skin ends up inside out..."when it works".In the wild, snakes have a lot more abrasive things around to rub against.