Ive used them, I like them quite a bit. I have about ten left. unfortunately I have a new xbow that requires omni nocs and I haven't found any that match the I.D. of the carbon express Maxima's. I like the raptor or blazer style vanes on them. To Me, I notice less planing off target with them than I do with longer style vanes when used with fixed blade broadheads. Just what Ive noticed myself.