On that subject- what confuses many new snake owners is that their snakes are in "blue" for a while, & then shortly before they actually shed, they "go clear"- meaning they LOOK as if they already shed, but they didn't. It's just that pesky moisture making the old skin (that's about to come off) look like the new skin.
It's not so hard to see "stuck shed"- that's why you're seeing it now. But it's hard to see when it's freshly left behind because it's still moist & fairly transparent.Right now, it's as if he's wearing a nose-girdle, & he'd appreciate your help.