Well for me, the upgrade from an early 90's bow to an 04 bowtech was a huge improvement in my shooting. I was a good shot before but nothing like now. Of course a new bow is a pleasure to shoot and in turn you tend to shoot more often. Maybe take up 3D and Indoor shooting. Again improving your skills. Speed isn't everything but it sure helps when you miss judge by a couple yards. I don't think upgrading every yearlike some of these lucky basterds[8D]does as much drasticlyfor there groups though.