I would have to say that these are probably one of the best Broad Heads that I have ever used. They don't effect the way My Crossbow Bolts fly through the air and I can still shoot very accurately with them. But most of all is that they really make a very quick and Humane Kill when You Hit a Vital Area of an Animal that You are Shooting at. I have recently taken a very Large Doe and a Decent size Buck on the first two days of this Archery Season. Both Deer didn't go passed 20 yards before Dead.