ORIGINAL: Bigpapascout
Go out and buy you a dozen of speed pro max shafts, tune a nocks,
2.50"x.50" Flex Fletch Vanes and 65 Grain FP I guarantee you at least 15 FPS probably more.
And will void his warranty if that arrow comes in under 300 grains
. But if he can get right at 300 grains with them, then I guess it's worth a try.