Vanes are great for wet weather conditions and durability. Hers the ground rules for vanes on trad equipment, Generally speaking.
1. That Clearance is the biggest issue for using vanes because they do not just lay down like a feather when used shooting off the shelf.
2. That once clearance issues are addressed that you have ample stearage for the control of broadheads.
Problem one can be addressed by using a glue on, or screw on rest.
Problem two can be addressed by the Bow being tuned to the shaft etc.
Assuming your dynamic spine and tune is right for your set up. You should be able to steer the arrow downrange with pretty good arrow flight, even with Blazers or the like if you have a consistant release, and have a little off set in the vanes to propellor (spin) the arrow into stabilized flight. All of the above being said; I would prefer to use four inch vanes as a minimum for broadheads with several degrees of off-set (straight clamp) because helical vanes have a tendancy to create even more contact problems when fletched helical because of the increased surface area of the wings (wound more 360) than straight off sets.
Now in final analysis if you can achieve the above, then by all means consider vanes. If not, just make life easier on yourself and go buy some quality five inch feathers and fletch them helical, “Arrow flight city”. Feathers catch the wind better than vanes and tend to correct flight problems much quicker than the best vanes! “Birds of feather” can really be stated as a good thing with the Archer! Feathers are hard to beat!:D
