ORIGINAL: Turk_man
Just shot my Q2XL through a chrono yesterday with whiskers and got 274 fps/. Shot it after removing them and got 277. I know each bow and arrow combo will be different but thats my results. I will add the noise level went up significantly without the whiskers.
I've had a couple of the Q2XLS, and for some reason that particular design had a ton of string vibration/noise. I had 2 leeches on mine, and it probably could have used 4.