I would fill a tupperware container with 90 degree water(about half way up the snakes side) and put the snake it for at least 30 minutes but no more than 60 minutes then let the snake crawl through a wet washcloth a few times. If it all does not come off then repeat daily until its off!
Yes. Works wonders for stuck sheds. It will almost fall off in your hands.
"Be not afraid of greatness: some are born great, some achieve greatness, and some have greatness thrust upon them." ~William Shakespeare
1.1 Normals - Apollo & Medusa
1.0 Pastel - Zeke
0.1 Pastel het OG - Dixie
0.1 Pastel het Axanthic
0.1 Spider het Axanthic
1.1 Mojave - Clyde & Bonnie
1.0 Black Pastel - Conan
0.1 Spider - Dizzy
"When they are shedding, they need a constant 60-70% humidity"
No.
When they are shedding, they need a constant 80-90% humidity.
That.
Is the only reason your ball python did not shed in one beautiful piece.
You'll need to fix the reason (low humidity) that you're getting bad sheds, and you'll never need advice on how to remove stuck pieces of shed again.