KEEF
+1y
The only way to do shave a spot and do it right is to either reskin whole panel(Grant method) or cut out the spot to be shaved so there is no rolled lip then make a filler that is same thickness metal and trim it so there is a 1/32" gap around perimeter. Make it the same shape as the spot then put it in exactly flush using magnets and begin to tack skippin around and hammer and dollying where needed for exact level patch. I like to get the patch about halfway tacked all up then go ahead and take cut off wheel and clean all the tacks up being careful not to get it to hot. Then continue to tack till its filled in and grind again carefully. Once u get done it will be like there was never a hole there and that lip not being there and the 1/32" gap left around patch will help minimize warping plus the 1/32" gap lets ur weld become part of the skin so once u grind there is still plenty of weld left. Here's a start and finish pic of side marker shave on my 72 Suburban fender, also the 3rd pic is backside.