I shoot a 2010 hoyt turbohawk 28" #3 cams @ 72lbs. I'm shooting Carbontech whitetail 65/80 arrows @ 28"and 100 grain tip. My proshop says these arrows are too stiff spined for this bow. When setting up my bow the arrows had to be set left of centershot quite a bit to get a good paper tear. Now my broadheads fly great but on all my other bows the arrows are set almost on centershot. Should I leave well enough alone or try arrows that are lighter spined. If so what arrows??? Thanks for the help.