i was trying to bare shaft tune today with paper , i keep getting a downward diagonally left tear .

before that i tried to get the bare shafts to group with the fletched arrows the bareshafts were hitting about 2.5 " right of the fletched arrows .I moved my res over as far as i could to the riser to get that . height wise the were really close with the bareshaft hitting alittle high maybe half an inch.

iam using tt shaky hunter , beman .400 & shooting 58.8 lbs .I did read on the mathews forum that the serving is to thick & causing alot of tunning problems .just wondering if i should change my serving .

how hard is it to change serving?