You can heat up a the tip of a small flathead screwdriver and use it to trim the whiskers away where each fletching passes through. Where the opening is on the new ones, line up one of your fletchings to go through the opening and cut away 2 other openings where the other fletchings will go through. The biscuit will still hold the arrow firmly in place, but give you more fletching clearance and longer life to your fletchings. Especially if you shoot vanes.

Ummm whats that got to do with a hot screwdriver?

As soon as you touch the whiskers with the hot tip, they pop right off. Very easy and fast.

Creating slots in the biscuit for the fletching to pass through will also compromise some of the arrow centering attributes of the rest and lessen its reliability. I would not do it. On a tuned bow the old black biscuit might have cost a couple FPS and some minor fletching wear. I'm not seeing any speed loss or fletching wear with the B-2 biscuit and don't even advocate trimming with the B-2.

Good luck hunting!

Exactly! The whisker biscuits attributes is removing the need to worry about fletch contact (usually one or two fletchings hitting somewhere on the rest) by having all fletches contact at the same exact time every time.

This was just for the old bicuit. Getting the new one this year. But, it does work better by doing this on the old one. Sorry I didn't clarify on which biscuit it was.

I belive Golden Key is the outfit offering a rest called the funnel rest. I dont know if you've seen these, but they use plastic fingers to hold the arrow, and you can adjust the fingers to give you perfect clearance.