I'm not too sure of the typevane he was using but he was using a fixed 90 grain broadhead.
I did get his phone number Rob and he just happens to live about 60 miles to the south of me here in western montana and he shoots year round at an archery shop that I frequent in kalispell.
It does make since about less effect during windy conditions. I've always been a die-hard 5'" fletching fan but since I have time to experment before season starts I'm going to cheque this set up out some more.
Thanks for the imput guys.

Bobby