I've had 2 Airtronics 94145 servos which were the most popular 1/12th servo for a long time. My first one was great...never had any problems with it. I picked up another one for a 2nd car and a buddy's servo went out on him so I sold him my old servo. Ran the new servo once and noticed there was too much play in the gears so it wandered all over the place.