I just finished removing the Diamond Shield from my MH. It took approximately 30 man-hours (the wife helped). I used a heat gun set at 450F held about 8" away from the surface and moved frequently. I used a sharp edged plastic putty knife from ACE hardware that I would resharpen periodically with some 4000 grit sandpaper. When the plastic peeled off it left a gooey mess. I sprayed DeSolvIt Contractors' Solvent on the goo and let it sit for about 5 minutes. I could then use the plastic putty knife to scrape off the goo. Removing the goo left a very slightly sticky film which GooGone removed quite well. The GooGone would not touch the original mess. I had 2 spots where the clear coat pulled off without damaging the color layer underneath. Given that one spot looks suspiciously like the side of someone's hand, I suspect that there was some contamination on the surface when the clear was applied.
I had read an article in a Motorhome magazine about the gentleman in Florida that mentioned a price of $1400 if I recall correctly.
