To answer your question about incontinence, I went to a pelvic floor physical therapist – – I think that's the specialist name. After lots and lots of biofeedback, some manual therapy and considerable amount of core exercising I mastered the incontinence. It was a lot of work, which is all for not now, as I have a k pouch. I'm sorry you're going through this as I know how incredibly terrible of an experience it is and how unbelievably frustrating to try to manage your life when you're incontinent also.
I will be curious to hear what the biopsies indicate. If it is pouchitis, then that may be one of the causes of incontinence. It was one of my symptoms but not everybody who has pouchitis is incontinent.
This is not the sort of problem that a surgeon deals with, at least in my opinion most surgeons deal with surgical problems/solutions. There are many other difficulties with J pouches and a G.I. Doctor, Who is familiar with J pouches, is a better type to scope you and brainstorm on what is possible. If that dr doesn't see many J pouch patients, perhaps he or she can contact mayo, even though it's been 25 years. Just a thought.