I just couldnt figure out what he was trying to accomplish. Mind you, I have not worked on compounds in a few years. I have been backed up on traditional bow orders. I got backed up due to a wood order not ariveing. I just finished building my last two custom bow and agreed to put together a compound for this guy. My concern is that the inertia of the arrow is going to be spread over the length of the arrow instead of the head. In the trad world we accommodatefor this by going heavy, 125-200+ grain heads. His arrows did not penetrate my target near as well as a heavier head would. Too light of spine for my taste, to get these arrows to fly true. I feel he is loseing too much energy along the shaft after impact. I guess to each his own.