I just found these Mayo forums, after recently being diagnosed with it seems very similar problems as you described - chronic retention and distended bladder, incomplete voiding, weak flow. Like you, fortunately kidney function OK, but now cathing frequently to reduce bladder volumes and hope the muscle rehabilitates. PSA OK, and prostate surgery not justified, so I'm about to begin pelvic floor therapy next week. Major blow to my current and future quality of life. I'm willing to spend months working on this, or more, but still VERY interested in pelvic floor exercise success stories for male incomplete voiding, which seem hard to find. By the way, self-cathing revealed that most of my urine production occurs during sleep at night, which has to be fixed as well ... I'm curious about your progress since this December post, if you can share.