I've used the FBV in my games for the last month now, and I certainly won't go back - however, I have noticed as others have that the sharpening doesn't last nearly as long as a "standard" sharp. I'd estimate 1/3rd the time - I'd normally go about 15 games before a sharp, and now I need to go every 5. Still, its rare to have an opportunity to throw money at a talent deficiency, so this is a small price to pay. I'll just keep buying the sharpening pass from National sports. This has to be a win/win for the LHS's that have the FBV, because by coming in more often, I'll most likely end up buying more impulse gear. Bah!