Well, the Bodoodle isn't a drop away style rest. It uses the same basic principle as the WB, no moving parts. The Bodoodle Zapper 300 has three prongs that hold the arrow throughout the shot, while the Zapper 400 has four prongs, the lower two are basically one prong but they are seperate prongs.

Basically, this rest cuts down on the vane wear you might experience using a Whisker Biscuit. Click on this link, it is a Image Search for Bodoodle Zapper 400 through Google. http://images.google.com/images?svnum=10&hl=en&lr=&q=Bodoodle+Z apper+400

This might help clarify what I am talking about. Basically, there are no moving parts, gives it the same appeals as the WB without the vane wear.