Right. Wipe Out is slow. Another idea crept into my head: maybe the foam gravitates to the bottom of the barrel, leaving it squeaky clean... but what about the top? So, I cleaned a barrel over night, then filled it again, but with the rifle turned upside down...Nothing. Happily, the foam cleans the entire surface.
They have an Accelerator, to make the product work a lot faster. Good luck. I've not seen that it does anything.
I'm not familiar with KG products. One of the last ones I tried that really had some merit was Bore Tech's Eliminator. Its an aggressive copper remover. I also wasted $9.00 on a bottle of Hoppes Elite cleaner, which is supposed to "clean to the pores", etc. Again, limited testing, but it looks like a waste of money. Tried it on carbon, copper, and lead, and can't say that it was effective on any of them. Supposedly, it will remove all of those.