Couple questions Terry. When you say "wind down" what do you mean? That the tail of the arrow is down wind? Any thoughts as to why the stiffest arrows are showing weak?
Thanks for the information.
I have MY THEORY of why the stiffer arrow is showing weak as this is something i've battled for quite some time. I used to shoot 340's and 300's out of bows in the mid to low 50's. It is just something about them, but I could get them to fly like darts; bareshafts and all. In my experience and OPINION, the stiffer shafts show weak due to the tail end of the shaft bouncing off the rest a little due to last of paradox and then they hit weak. This theory is supported by his findings as well. His first arrow is a .330 cut to 30" with a standard insert(not sure what that is in that arrow) and it strikes 6" right(weak for a RH shooter). Then his next arrow was a .400 with a 65 grain insert cut to 30" and it shows less weak than the .330. Next up is the Beman CS that are .400 spine with standard insert and they hit the best of all 3.
Also some factors I think are worth mentioning: The victory's are fletched with 4 fletch shield and the Centershot are 3 fletch parabolic. Not sure of the exact length of the feathers, but I have seen longer fletching effect flight due to clearance.
Either way, thanks for sharing, Terry. I always love reading others findings.