Ok, I have my front bumper all weled and am pleased with the shape and welds. I V groved and but welded the bumper sections. I then ground down the welds and gave it a light coat of dykem to use as a guide coat. I then sanded it with a belt sander and got it really nice and flat. Now I am wondering what I should do now. Keep belet sanding with finer grits? Then the bumber ends where the radius starts. Can't use a the flat belt sander there. If I use say a 3'' Roloc on the die grinder it won't leave it flat even with the scotch brite type pads. How much prep will a good chrome shop do before it's dipped into copper. Can I request more dips into the copper to used as a filler before the nickel or am I totally off base with this line of thinking. I've never had any chroming done.