I raced at The Farm 2 this weekend, and I had problems with my rear bearing in my clutchbell today in a 45 min. main. My Dad couldn't believe it since we really havn't had any problems with it.
Yes, I have killed a non-airtronics servo, a high-end digital, high torque & speed Ko-Propo servo. A couple of them, not sure if it had to do with the car though, since I have had problems with them before.