Guys

Have been running the JR version of the Graupner DS8911 http://www.servodatabase.com/servo/graupner/ds-8911 in my Reaction for only about twenty flights or so and have found that three of them have developed an unacceptable amount of slop in the gear train. Has anybody had the same experience with these servos and is there a fix for them as in fitting a gear train from a different servo or something else, not very happy with these servos so far?

Thanks
Peter