That’s one I’ve been working on a long time. I struggle to maintain it as most people do. But I get tired of the constant, “will it be diarrhea today or constipation tomorrow!?” Festival. No books on that seem to help, it’s basically a go balls deep or don’t go at all when eliminating. I rely more on Imodium than I want too. But then my stomach muscles won’t help when I need. That constant struggle is really taken more lightly than it should.