These arrows are a huge step up from the old 5.5gpi arrows that were very brittle & wouldn't take any abuse. I shoot a High country extreeme 72 lb. 28" draw & muzzy 90 gr.4 blade at 375 fps out to 100y with them & can put them in about a 4" circle with awesome penatraition. They hold up as good as victory's. Just think of the possibilities? If your bow wont shoot below I.B.O. you could put in a lighted knock & be real close to I.B.O. smoking fast &flat shooting. I use a I.Q. retna lock 7 pin (keeps me in perfect form) .