Chix:

Yes, pull the cord out for safety. I don't know how the heat would affect it. Probably no affect at all, but be safe. If you can pull the tube, warm it with your heat gun, then hold the bend until it cools. If you form a close fitting wire to the shape ypu want and stick it in the plastic before you warm it, then it will be perfect when it cools, and you wont have to use your fingers messing with the hot plastic.

If you can't, or don't want to pull the tube, still use the heat gun, (being careful of the covering) but you will have to use a wire this way. Just stick it in 1/8" or so, just enough to use it as a handle. Stick it in too far, it will absorb the heat, you wont put a bend in the tube. Keep pressure on the tube with the wire as you heat it, and stop heating when the tube lets go. If it's not bent enough when it cools, do the warming bit again and recheck.

As I said, I'd pull the tube to do it.

Hope this helps.

Pull-pull, and a twin,
. Man, you're "In like Flynn!"

Bill.