I’ve tested a lot of vanes and really haven’t noticed much of a difference. The most popular, widely used hunting vane on the planet is the blazer which is a 2”/.5” parabolic. I think vane height has a lot more influence then vane shape or vane length.
This is not chiseled in stone, but it seems to me that traditional equipment users prefer shield and modern equipment shooters use parabolic, and I think it has more to do with the look than performance. Traditional guys?
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