I am in the process of designing a rack system for my Bantam trailer and am concerned about how high it can reasonably be built to support a RTT without seriously affecting the center of gravity when off-road. I am sure others have already figured this out and solved the problem so I am looking for somebody with experience who is willing to share their knowledge. My initial thoughts are to have the rack built so that the bottom of the RTT is 6 feet off the ground and 28 inches about the top trailer rail. This height will allow me to install my Thule Adventurer under the RTT, although it is not necessary to have this I feel it will be a nice to have item leaving the trailer bed available for other items and the Thule could be removed to haul kayaks. The most important thing to me is stability when off road, understanding that the higher I go the less stable it becomes. Any thoughts? Thanks..............