As someone else mentioned, for me being stable is not having excessive D or C. I tend more toward the C end, so that's what I struggle with more. For the most part if I have a BM every few days I consider that stable. But to me being stable isn't quite that easy to define. I also swing to the A end from time to time, for weeks or even a month at a time, and when I do I just have this feeling in my gut that tells me no matter what I eat it's probably going to give me D or at least make me feel pretty sick. So when my tummy doesn't feel upset like that AND when I'm having BMs, that's stability to me.
-------------------- "Anyone can exercise, but this kind of lethargy takes real discipline." -Garfield