I think if you shot the same arrows you would be fine as long as you had the arrows longer, at lets say, 27". Make sure a 27" arrow w/ a broadhead on it and will clear the riser and you should be fine. If a 26" will clear the riser, I'd go with it.

Your pro shop should be able to help you more. I can't find an easton spine chart so I can't say for certain either, but I would guess what I said above would work.

Maybe try to find someone with one of those archery programs (Ontarget or something I think it's called) and they should be able to tell you anything you want to know. Hope this helps.