I jumped at the chance when I saw 10-rounders in Walmart's display case. I also picked up a 5 rounder at Ramsey's in NJ. The original 5 rounder that came with my FVT is garbage. Must have gotten a bad one there. It will jam, cause the cartridge to stand vertically on the rim end, and give me all sorts of tsuris.
The 10's and the replacement five have been flawless.