You won't pick up much if you did. I shoot the same arrow weight and last I check it was over 280 out of about the same setup, a protec. I use theHunter elites. It's the way I set the bow up that gained the speed not the arrow. My brothers 06 shoots 10-20 fps less (factory setup). Same specs all the way around. Taken my arrow down to 394 and didn't show much more than a couple fps. It's giving all she's got and there aint no more.I didn't like it either.