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Any cleaner with ammonia is going to create the "blue" that we all talk about because ammonia (NH3) is going to react with any small trace of copper.
These foaming cleansers claim no ammonia so it is my guess that they might have some form of nitrogen or maybe another element reacts with copper in such a way to get "blue".
Regardless, cleaning is over rated, unless you just have a bore that fouls overly so very rapidly. Most completely clean bores don't settle down until after a few fouling shots, so why care about getting the bore squeaky clean?
I didn't get gobs of blue when I used gunslick but I did get a few transparent blue drops dripping out of my barrel. A couple of patches through followed with a couple patches of Hoppes and everything was very clean. I set out to do this "thorough" cleaning after feeling that my groups were opening up some. Granted I hadn't cleaned in 100 plus rounds. Maybe a bore snake with Hoppes some where in there.
I think it more so depends on condition of the bore (rough vs smooth) and what bullets you are shooting. If shooting Barnes monolithic copper bullets you are going to be laying down more copper for sure because it is more pure and malleable. While say nosler ballistic tips or accubonds seem to shoot very clean because the "copper jacket" is of a bit "harder" copper alloy. Thus it doesn't lay down as much copper, and I find shoots cleaner. I think if you're getting relatively clean patches after the foaming cleaner and your bore looks shiny....then go shoot....if the groups are settling how you like, then who cares if an ammonia based cleaner is still bringing blue patches. We're here to shoot accurately, not clean pristinely.....
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