Josh, go to
www.stickbow.com and look at their sponsor list for " Arrow by Kelly" He has a chart for aluminum arrows. From what I understand, it isn' t base on Easton' s chart, but he put it together himself from his experience with them. I' m clueless when it comes to aluminums really; I' m a wood fanatic. You could e-mail him about it, or register and ask the question at the leatherwall. You should have a bundle of answers in short order. I know some memebers here have had bad experiences with the leatherwall, but due to some recent changes it' s shaped up a lot. I' d really recommend taking it there.
Brandan