I have had my eye on them for a while, and ended up getting 3 for free. After shooting the 2 blade B-52 for the last several years, im having a hard time changing. I put them on some arrows tonight and have to say im impressed, they spin really true after put on, all 3 of them did, no messing around to get them square on the arrow, It also looks like theirs a good part of the front of the blade the snugs up under the body of the head, im thinking this will take a pretty major impact to break the blades out of it. Ill pry shoot them some next weekend and see how they shoot. Man i cant wait for Aug 15th to come!!! Its almost hunting season all!!!!!!!!