I am currently trying to tune my new Bowtech Allegiance ( 2005 ) bow and have ran into a brick wall. My goal ,as unrealistic as it may seem to some, is to have my bareshafts, fieldpoints, and broadheads all hitting the same general area. I did acheive this with my last bow and it shot very well.
Current equipment
-Bowtech Allegiance 05
/ binary cams
/ 80# draw weight
/ 29 inch draw
/ 28 inch Beman ICS 340 Hunter arrows
/ 100 grain tips
/ Drop Away rest
First thing I did was make the proper adjustments to get successful bullet holes on the paper test. I had the bow shooting nice bullet holes at various distances. I then reset my sites and found that my broadheads and field points were hitting the same general area at 20 yards.
Next I moved to bareshaft tuning. I removed my fletchings and then added the fletching weight back to the arrow by adding a cut down insert to the rear of the arrow. Got it within two grains.
I began shooting. Shot after shot, adjustment after adjustment, the arrow is consistently hitting with nock up ( downward angle ). Cant figure it out.
My questions are: Is this an arrow spine issue ( Beman ICS issue )? Is this a drop away rest issue ( Dropping too fast )? Is this a Bowtech / Binary Cam issue ( Out of timing )? or Is this an FOC issue ( use lighter fieldpoints > 85 gr)?

Thanks