I agree that the Easton chart seems to be overspined slightly. I don't agree that shooting overspined arrows is the greatest thing in the world. We are talking about aluminum and carbons here, not cedar. To me it is very important to find the correct arrow that will papertune bullet holes while shooting through the centershot of the bow. This is not an easy thing to do, however, when you find the correct arrow spine that will do this, your bow will shoot the most efficient.