I recently bought a pse vendetta xs and I'm in the process of tuning it. After spending some time with OT2 I got some arrows for it. my question is the bow has two tuning lines for nock height and center shot. But the manual states to set the rest pararel to the marks but give no distance measurement. Gmmat got me thinking a while back about tuning how most shops just pick a arrow according to a chart and tune the bow to the arrow instead of tuning an arrow to the bow which makes sense for optima accuracy. So back to the question does anyone know the factory distance for center shot? I have a couple arrows fletched and have my rest over the line and the arrows are tail left and I'm just unsure if I need to play with the arrow or if I have an incorrect rest postion. Thanks in advance guys