Stuck shed - do I bother removing it?

[Lolo76]

James the Stimson's Python had a bad shed last week, and I can't get this one piece off... it appears he got the underside piece stuck in his chin (where their skin "cracks"), and that caused trouble with the rest of it. I managed to get about 95% of the stuck shed off with a rub-down, but I've tried 3-4 times on the neck with no luck!

I'll post some photos below, and would like to know if I should keep trying - or wait for it to come off with the next shed? He was very cooperative through the rub-downs (wet towel), but I could tell it was stressful as he started to wheeze/whistle... which is something I've noticed my Antaresia always do when they're excited or stressed out. He also refused his meal tonight, so I'm worried that piece is still bothering him. Anyway, here are the photos:

Here you can see where the trouble started, at those little pieces hanging from his chin...