I think that probably had a lot to do with Bear Archery being the only one willing to employ their Ideals I guess I could go on the ExCal forum and post that question to Bill T.. and the article on his site about the compound being less accurate he counterdicts in an article he did for the Horazontal BowHunter Site he talks about how a well tuned compound will drive tacks.. will see what I can find out,,