Originally Posted by
bigbulls
What I am trying to get across to you is that regardless of how short the vane may be, the degree of helical is the same for a given diameter of arrow provided the jig and clamp are set up properly. A 5 degree helical is a 5 degree helical no matter if the vane is 1" long or 5" long. Just because the length of the vane changes does not mean that the degree of offset or helical changes. It stays the same with a helical clamp.
What you two are referring to is nothing more than visual problem that you are confusing with geometry.
To put it another way. If you have a box and you draw a line from one corner to the other. Does the angle of the line change if you stop drawing that line half way there?
As far as robbing your arrow of speed down range by fletching a blazer with a helical twist it will not matter until you are well beyond what any one should shoot at a live animal. I am talking at least 60, 70 yards. The speed loss at hunting distances would be so minimal that the added stability would far out weigh a few FPS speed loss.