I've been eye balling these for a couple of years now.What little I have seen or read has been good.I've had such great success with the 2 blade I've been reluctant to try them.So when I saw a 3 pack for $22 I decided to give them a try. I really like the looks of them and their designed to open just like the 2 blades. I didn't have much time to shoot at all but did manage to get off 1 shot with 1 yesterday. Didn't bother with the practice head. Just taped the real deal like always. So far so good! Only 20 yards but really close with my field points! More testing to come.