mez, what is center shot set at? I start around 3/4" & tune from there. If the broadheads group well, you may just need a small rest adjustment along with a small sight adjustment. Any form flaws, torque, creep, poor release, will be magnified with broadheads. This could also cause you to hit left or right.
Phil.
"Could you guys be quiet, my dad's trying to shoot."<img src=icon_smile_shock.gif border=0 align=middle>