[ronn]

After finding the exact point at the back side you need to buck the painted face with a slightly compliant hard block of UHMW plastic or something similar. Without it the metal will stretch in a miniature donut shape around the place you are pushing. You will end up with a slight swelling or bump surrounding the pressure point after the metal moves.

while that makes total sense............
had a dent removed from a newer van and no heat applied, just spooned out and no defects could be seen.
________