My appendix has TB withers and a qtr horse back. I was using a Courbette CC but it is too narrow so I have since been on a saddle search. Yesterday I stopped in at a tack store and looked at their used saddles and found a Crosby Corinthian CC with flex tree. I picked it up and tried it on Billy tonight and it looks like it will totally work for him.
We rode around the arena in it tonight and he seemed more relaxed in it since there was no wither pinching. He even didnt refuse to walk the hills around the property for once.
I have some crappy cell phone photos, and the back of the saddle one I had to just hold the phone up because he is so tall hehe. Let me know what you think if you see something off. I can fit 3 fingers above his withers.