The crossbow part went several pages on Excal forum about a year ago. Was not well received. I got into it w/ inventor via e-mails over the shot thing. I personally think while this is cerainly innovative, it won't help the xbow movement at all. The 6" darts are not practicle for hunting as the vanes are the b-head and sit about 4-5" back from point.I think the inventer was kinda miffed as Excal didn't want anything to do w/it.