I have to tell you, you can warp the hoods or roofs on those cars EASY with a sander. You have to be very careful to use NEW. SHARP, QUALITY paper and change it often and not work in one area long.
But I have to tell you, at the shop, that sucker gets chemically stripped we never strip large panels like a hood, trunk or roof with a sander.
If the whole part needs to be stripped (they usually do) then that part comes off the car usually, if it is a bolt on. A hood, no brainer, it gets pulled off and set on a stand and stripped with Aircraft stripper. The roof, the car gets bagged with plastic masked off at the roof protecting the sides of the car and it gets stripped with Aircraft stripper.
You have to give it a lot of respect, but that striper saves a lot of time.