I just emailed the company that makes wisker biscuits. The name of the comapny is Carolina Archery Products. I plan on keeping them. I like the fact they responded to me in a few hours. Below where there comments. I am going to try some of my arrows and recheck my rest when I get home to make sure there is enough space.

My question to you all is if I use mechanical broadheads and field points exclusively what angle should I set my fletch 0, 1, 2 , 6?

Thanks,
John

Thanks for taking the time to contact us. If the vane itself is tearing, you
should consider using a tougher type of vane. The machine fletched arrows
often use softer, more rubbery vanes. We find several brands to be very
durable and never tear. These include Flex-Fletch, Bohning, and AAE
Speedflyte. They have low stretch material that is very tough. Fletching
your own arrows is fun but if you don' t have any experience I would suggest
you read up on it. Following the shaft and fletching prep and glue
recommendations very closely will prevent most of the problems.
A tight fitting biscuit will cause several problems and is not recommended.
You should easily be able to see daylight at the top of the arrow as well as
on both sides. The biscuit can be spread open for the desired loose fit.
Thanks again for taking the time to contact us.

Sorry, I forgot to mention that we generally shoot a 1 or 2 degree offset
and get good results with well tuned fixed blade broadheads. You can shoot
more offset but it will cost you a little more speed loss. It depends on
what you are trying to accomplish; flat trajectory, maximum penetration,
largest cutting diameter, etc.