i'm shooting the guillotines this year and was able to take about a 12 yard shot on a long beard yesterday that was coming in to smash my jake decoy. we couldn't get him to stop so i had to try a moving shot and caught him square in the front shoulder, rolled him like a sledge hammer but the arrow didn't penitrate & he got up and ran off, if he was in full strut it would have been different, i'm really a believer in them though it just takes the right situation for them to work, although we were fortunate enough to get my hit and my hunting partners kill with a spitfire of a 22# 8.5" longbeard on video yesterday that was pretty cool. I'm shooting the guillotines on 32" 2514's with 5" vanes and they seem to fly well with 3 gobler getters in my quiver for back up. good luck with the head shots guys i try to get one for the site in the next month.