All you have to do is go to a heavier head. BUT.... it might throw your spine all out. Go to http://home.att.net/~sajackson/archery.htmland use the arrow shaft selection tab to see what it does for your arrow if you change to the heavier head. I was running about 13.5 before I changed to QuickSpins. I got to check and see what it's done to me.

Dang... I just did it. I found out I'm down to like 8.6 They shoot well with and without broadheads. I guess it would be slightly higher with my longer broadheads.