Hmm, interesting. Unfortunately, their website doesn't give much information. They talk about how you can reduce draw weight or cut lines, but not how much it increases FOC. It appears to be presented as a target arrow instead of a hunting arrow.

I'm guessing that if Ashby's discoveries ever become well known, companies will be producing more products like this. Can you give us a clue as to how much these things cost? Have you bareshaft tested this shaft? I'm guessing not, since you only have one.