Have you shot these on your bow?
The reason i ask cause these things are BAD...real bad for your bow....be very carefull there bud, lot of exta tension/pulling going on with these, that speed comes from somewhere....
12 Insanity cpxl-(FS)-B-Stingers all around-Hogg Father 4x-Edge-Wise Guy-Victory HV1 300 12 Insanity cpxl-Hoggit 7 w/wrap-10.25 B-Stinger w/11oz out front-Tightspot-Victory HV1 300 w/Wac'em cutting the way-all this love cut loose by a Wise Guy
I have one on my old plinker bow, but not my western or whitetail hunting bows. I never maxed it out, as alot of shooters did. I generally gained about 5-7fps.
Thanks for the concern, I just have a few leftover from those days!