The arrow shaft goes throught the hole in the center of the biscuit and the fletches push their way through the bristles.

While I am sure that there is some minimal amout of wear that occurs over time, it would take a heck of a lot of shooting (probably more than you would do in a lifetime) to actually wear a biscuit out.

With respect to the accuracy thing, if you take the time and tune your bow well, the biscuit is more accurate than 99% of the archers will ever be. I am pretty sure that one of the pro target shooters shot a 300-60X (perfect score) using a biscuit.

It is simple, easy to tune and darn near foolproof. It is probably the best hunting rest made.

While there are plenty of "techno-weenies", myself included, that shoot other rests (drop aways, prong types, etc...) they tend to be a little more tempremental than the WB. It takes more to get them set up correctly and they all have moving parts that can break or fail to work correctly. The WB has none of these shortcomings.

If you want the most simple, maintence free rest made, then the WB is IT.