If you are just over the recomendation by a hair, I wouldn' t worry about it too much. If you are way overspined, you need to see how your bow is shooting to make that determination.

An overspined arrow can cause your shots to string out one way or the other as your range increases.

A quick way to reduce spine is to increase your tip weight. If you are shooting 100gr tips now, try out a 125. This should reduce the spine just a bit.

Check out easton' s web site. Their tuning guide is just about the best out there.