Why Parabolic???

[PA Hardwoods]

Why do people here in the US and North America use Parabolic shaped feathers more often than Shield cut? This has always fasinated me, since there is no scientific evidence that one is better than the other. So let me know what you use (Shield Cut or Parabolic) and why you use it and if you shoot a modern or traditional bow. I think it will be very interesting to see the results. Also put in your 2 cents and let me know why you think Parabolic are more popular here in North America. I personally like to wrap my black carbons with a white wrap with yellow and white shield cut feathers and a green knock. It looks really sharp and makes them very easy to find.
Thanks

[Rangeball]

I also prefer the look of shield cut, but around here you'd have to be set up to fletch your own, as all the shops only carry parabolic...

[CG]

I would suspect that there is slightly for drag to a shield but I can't imagine it is enough to be noticeable. Truflight says that from their observations it is simply appearance. I'd the parabolics popularity is based on availability.

"What we do in this life echos an eternity"