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Line up fletchings with broadhead blades!!!!!!
If you move your site both your BH group and your FT group will both move, BUT..... the BH group will move a farther distance than your FT group and after adjusting it enough your BH group will "catch up" to your FT group.
Go here and download this guide....it's great and will get you fixed up
I just assumed you new how to broadhead tune by moving your rest. I agree with clockumelk they will both move but the broadheads will move more. That being said when I ran your specs through Archers advantage it said you were weak spined. I might get flamed for this but I personally think lining blades with fletching makes no difference at all. How would you do it with a 2 blade 3 fletch or a 4 blade 3 fletch? Just my opinion...
let me know when your gonna buy new arrows and i will run the numbers thru archers advantage and we can get ya set-up perfect!