Ed, we been over this countless times before. Your "torch" method is crude and looks like hell. It's like a plastic surgeon using a razor knife and duct tape to do a face lift. I'd rather leave rust on a gun than use a torch to recolor it. It that plain enough for you? Pretend all your want it is a "safe restoration" method if you want I am not having any part of it.
There are craftsman who can properly recolor and re-harden a gun if the owner desires it but they do not use a torch. It cost more to be sure but if you have spent time and money restoring a gun you have to be prepared to do it right. And after spending many hours and more than a few bucks on a gun I tend not to cut corners at the end.