I now this is alittle late to be having some of these issues, but, better late than never.
I've been getting some odd arrow flight. Here's my setup. 02 Hoyt Magna Tec, set at 68lbs, 29" draw, Trophy taker rest, Tru-fire huricane release, CC 400 series arrows at 30", 100grain field tips and G5 Montecs. last year I paper tuned, shooting great. This year I made a couple of changes: 1) moved peep site slighlty 2) creasted arrows with 4" duravanes.
Shooting out to 20yds, everything seems to shoot great. At 30, 35, 40, 45, it seems that I'm starting to get some erratic flights, especially the further out you get. I have 2 arrows with illuminocks, and at 35-45, they seem to be spiralling about a straight line to the target, more noticible as you get out at the further distances. they still hit within 3-5" of aimed spot. When shoting broadhead, after 20yrds, the arrows are starting to drop 2-3", and I'm now getting a whislting off the broadheads.
Could I have to much weight on the back of the arrows? (Crest, illuminocks?) I have a 125 grain field tip and a 125grain muzzy broadhead that a buddie is letting me try to see if that helps?
Any suggestions would be appricated. Thanks