Is there anyone out there who can give me some tips on what should be a easy job. I have a Beretta Compact in 9mm, purchased new and the barrel had a small area on it where the blueing looked thin. I have blued small parts in the past and had them turn out fine, but this barrel is killing me. I have a bottle of Birchwood Casey Perma Blue and a bottle of the Super Blue, but it will not go on evenly. Ends up looking splotchy. I removed all the original blueing, cleaned it with super fine sandpaper and fine steel wool---should I be cleaning it with some kind of solvent? Is my problem that the steel isn't clean enough? The gun just doesn't look right with a polished barrel---I should say to, that the two bottles of blueing Iv'e had for a few years--should I start out by buying some fresh blueing? Any other brand out there that's real good? Thanks in advance-------John