Sand paper, sanding block and sweat. That's how to correctly remove roll marks and the Rock Island roll marks are deep. If you go to that amount of work, spray painting a finish or cold blue is pure blasphemy. See about getting a picture up a bit later on the last one I did. It wasn't perfect, but it was close for the 14 hours I had to fit new controls, remove roll marks and 25 lpi checker front strap before hot tank blue deadline. All of it was last minute, oh shit I got my handsfull, no sleep that night work and I hurt for days afterwards. Cut the guy a hell of a break in price just because I was up for the challenge. He could've bought a decent used Colt for what he had in it. Had I charged what should've been billed and taken the time to do everything perfect. All costs in including purchase price of pistol, $1,400.00.
See if I can find pictures.
dc.