What I find interesting is that in nearly all of these threads, somewhere along the line it's discovered that a connection was loose causing poor signal/power to the servo...or that the servos had been involved in a previous crash....or there was a hard landing recently....almost always there's a REASON for the servo failure. I have yet to see anyone PROVE that the servo just failed all by itself with no outside help.....no matter what the brand.

In both instances that I have witnessed a "servo failure" (one of which was my plane that I crashed)...it was later determined that something else led to the servo failure. In my case, an extension vibrated loose, intermittent signal to the servo and the servo went hard-over....stupid mistake, lesson learned....haven't had a problem since. In the second instance the individual later remembered that he had been hovering over a pond the week before and had dunked the tail a little too far the last flight. A week later, and several more flights and that servo gave up the fight. Not exactly a big surprise....but again, lesson learned.