The match the paint to the bore size hype is not hype. It works. I have a J&J Ceramic and an Armson Stealth and the Freak is a far superior barrel. I get better accuracy and more distance with the Freak. I attest this to the fact that my paint bore is perfectly matched to my barrel bore size.
I wish the carrying case had some extra slots for extra backs and fronts. I bought the complete system so all of the slots are filled. If I want to buy a different sized or colored front It wont all fit in the handy carrying case.
I wish I hadn't wasted my money buying other less expensive barrels. I think this barrel system is probably superior to all other barrels by virtue of its design.