I have a Butet that I got used about ten years ago. I’ve ridden a huge variety of horses in it and it almost always keeps me in a balanced position. Mine has the extremely flat seat but I always feel secure - far more than in deeper saddles with larger blocks.
I sent my saddle to Butet in New Jersey earlier this year. While I think Beval has ended their distribution relationship with Butet, their saddle repair crew is amazing and they were happy to replace my billets. On a different occasion, I watched an employee of Beval repair a saddle in person at their booth at WEF and it was amazing to see the skill and expertise involved.