I've had my Model 10 for a few months now and it is perfect. It's the best device I've ever had. The Anatomical base ring is a huge improvement over the old round ring. It makes it very comfortable. Even more comfortable than my old model 05. I had them custom make a spiked punishment ring that can be locked into the cage. It simply replaces the middle ring. The flared base on the bottom of the PA pin minimizes urine drips so I can't urinate standing. The open design makes it very easy to clean. I've finally found my device for 24/7 wear.