I think that the Outers Foul Out system is awesome for a complete cleaning. I use it every three to four cleanings. It seems that no matter what solvent you use you can always pull more copper out. I have experimented with trying to pull copper out with CR-10 after using the Foul Out and was unable to. If you want all your fouling out with a minimum of wear on your gun and elbow, I highly recommend it. It seems expensive on the surface but the required solution goes further than expected. Well worth it.

If you shoot anything with lead then you really need this system. By far the best lead remover I've ever seen. Pull the rod out of a fouled bore and it looks like a magnet with iron filings.

Haven't noticed an appreciable accuracy improvement as I usually don't let them get that far between cleanings.