Does anyone have any experience with these rack that can be added to smokers? I have a Daniel Boone and saw that they made the [Bull Rack](lhttp://www.earthworkssupply.com/categories/BBQ-Products/Bull-Rack/ to fit. Was thinking it would be awesome for Jerky, and even appetizer like items. The Bull Rack seems to be the standard, but I am curious if anyone has used it, or any like it and what your opinion is. Is there a cheaper option? Do-it yourself option, etc.