RE: I found the arrows I want
If your really set on keeping your arrows at 26.5 then I'd get the lighter spined arrows. However, if you feel your going to up the weight later down the road, then I'd just get the 5575's and have them cut a couple of inches longer. That way they should spine good with the lower wieght, and further down the road when you do up the weight you can just cut them down to get the right spine.