I have known two riders that have been severely disabled that have been very sucessful in the show ring competing against able bodied riders. One of the riders had no legs and only one arm. She cued her horse of of voice commands and steered with her one arm. She showed 4-H and went to state almost every year. In breed competition I showed with a rider that was a parapalegic. She had no use of her legs. She showed at the world level and did awesome. Both of these riders used saddles with similar concepts at the one posted above. Equipment like this fulfills the dreams of handicaped riders and please don't knock it before seeing someone using and enjoying it.