Aren't you maybe being a little bit over critical? I understand your desire for consistency, but come on, an auto that is gaining/loosing nothing more than 10 seconds a day? That's usually good enough to keep any auto owner happy. My orange Mako has stayed in the +/- 10 sec range since new. How much wear is your's getting? Mine seemed to settle down after several cycles of multi day wear followed by complete wind downs. Also, I couldn't agree more about Mako and NATO/Zulus. I'm willing to bet that there is a higher ratio of Makos on nylon than almost any other diver. Guess thats what happens when you have a great case and movement on so so straps/bracelets. BTW, let me know if you ever hear of an after market bracelet with curved end for the Mako.