I agree with AllArmyGuardian. I was using the regular Hostage rest last year, and switched to the Hostage Pro this summer, and i love it...all the advantages of the WB, but doesn't wreck your vanes/fletchings. Works great on 4" vanes and blazers (which I am using). ButI was told that you might run into a problem with a significant degreed helixal (which makes sense).