I just put a new Vaipor string on my Drenlin and being old school I havent paper tuned a bow in over 20yrs,anyway here is the deal.Iam getting a streight up 1/2-5/8 tear,no left,no right,no down just up,I shot at 5yrds from paper and its allup tear with all 12 arrows....Now my ? is I went to a Lightspeed 340 arrow this spring and Iam hitting 20-30-40-50 just fine but the up tear brings me to belive my spine is weak,Iam shooting 67lbs at 28" draw with Mechanical release........
So to all you teck folks out thier am I wrong with this thinking,Iam going back to the heavier beaman ICS 340 hunters with 4" vains rather then the Lightspeeds with Blazers and wont be paper tuneing again.....And yes my timing,rest,D-loop are all spot on.....