My 2700gm just girl gave me a complete one piece shed. It seems to me that the humidity needs to be high as soon as they go opaque. I pack some damp moss on the hot side and try to keep it damp till they shed. Some even like to hang out in their water dishes, so I give them the jumbo dish when they are in shed.

If they do have a bad shed, get a towel wet with warm water and let them slid through the towel in your hands. You can usually work off any stuck pieces.