RE: how exactly does a biscuit work?
IT's good enough I'll be taking off my Drop Zone and installing a WB. Friend of mine has had the same buscuit for 3 years and hasn't had to change a thing. IMHO, the WB is positively the best hunting rest on the market. No moving parts, nothing to fail, and the arrow will never fall off, making especially appealling to the spot and stalk hunter.
If I had to pinpoint a negative, it would be the effect it sometimes has on vanes. W/ some vanes, they wrinkle pretty badly, but the Blazers and feathers work very, very well.
The WB is incredibly accurate, simple to install and tune, and the only negative impact on arrow flight is the loss of MAYBE 3 fps. Whoopidie Doo!