i had never used them,yesterday i went and bought a new bowtech tribute has a wisker biscuit deluxe,dead nuts pro sight,sims s coil and picked up some eaton axis 340 st's with blazers,was not sure about them but dealer told me if i did not like the arrows or vanes he would buy me 12 arrows of my choice and free vanes.well i shot about 15 arrows there "inside" 30 yrds. took the bow out side today and shot about 40 arrows from 15 to 50 yards while sighting in the bow.Well i was sold they fly so smooth and straight work very nice with the biscuit.will be going back and getting another dozen next weekend..