Cool side really doesn't matter. Hot spot should be no higher than 85. Humidity also doesn't matter unless you live in the middle of a desert. I'm in the bay area of California and our natural humidity is just fine. I have no problems with them shedding. If they DO have a problem, you can provide a humid hide in the form of a tupperware full of damp sphagnum moss. Pick up the snake around the middle gently, and treadmill your hands one in front of the other.