Sounds like a good way to run a saddle business to me. I hope that some adjustments to your fitting can help you and the back issues, surgery is serious enough and the spine isn't a place to experiment. I put off any surgery to my lumbar vertebra for several reasons, much to my detriment in the long run.

Do what you find works for your issues, but include the doctors and physical therapy people, if you do end up using them, what ever the level of help you might need to get out of the pain, or numbness, in your leg. Best of luck on the adjustments and on getting sorted out. P.M. me if you need to talk about anything related to my injury, the surgeries I had, and what I have found from the experiences I had.

Bill