ORIGINAL: pukeleeland
What exactly is the philosophy on choosing a vane system? What is the advantage/disadvantage of going with a 2" vane versus a 4" vane? Which one is better with fixed blades? Which one is better beyond 30 yards? Which one is better with a high-speed bow? How can a vane fletched without any twist be very accurate without turning the arrow, especially with a broadhead?
Bottom line is bigger the vane more stable BH flight. But bigger the vane, more chance of clearance issues. Bigger the vane, more drop past 30 yards.
You got to find a compromise. The standard tried and true 4" .4" high vane will give you all you need. I myself do not like blazers and any vane over .5" high. I have grown to hate quickspins.
I am thinking of switching to 4" feathers this years myself. I mostly shoot 5-5.5" feathers traditional, might as well do it with compounds. They are a lot more forgiving than vanes. But always have to deal with wet weather.