ive used just about every cleaner out there, still havent found that miracle formula yet. Glad you did. so far the best ones for general cleaning is Kroil or hoppes #9, but they fall in the line with all the others when it comes to getting out severe lead fouling, for severe lead fouling i found JB bore paste to work the best. as for shotguns, they dont take much to get the bore sparkling clean what i do is take a mop attachment lightly spray with rem oil run it through 3 or 4 times and call it good.