Not to knock the Limb Driver ( I have never used one)but the Muzzy Zero Effect rest is AWESOME. Take some time and read the post
Pass the salt... MAJOR kudos to the Muzzy Zero Effect rest!and see what you think. This rest is simple and works in the same manor as the Limb Driver, and that is the rest opperates(falls) as fast as your bow fires....pretty simple, but without the strings and extra goodies. Take a look