I figured out how to fix my vane wear/contact problem and like I suspected it was mostly due to the vane setup. I adjusted the tiller out of curiosity, but it didn't substantially seem to actually affect the nock travel. The change of vanes on the other hand made all the difference in the world. The company's name that makes the vane is Arizona Archery Enterprises Inc. They have developed it specifically for the whisker biscuit. It is a little bit lower profile then say a duravane, but it's made of a lighter and more resilient material. I am shooting an agressive right helical (maybe 5 degrees??) on a 4'' vane. There doesn't seem to be any difference in arrow flight (with field points or broadheads), even at 60 yards. And I have shot the same arrow 50 times or so without any wear/contact problems. The main reason they work so well with the Wisker Biscuit is because of their low profile.
Hear is a link to the AAP vane:
http://www.cabelas.com/cabelas/en/te...ainCatcat21424