Now that I have run the JR Z9100T there is no going back.This servo is great but it cost me $100.00 and now I see them for $135.00.The servos and the DX3 and DX3R were by far the best money ever spent on the Revo.I run the same servos in 4 Revos and my Truggy.Strong,fast,3 year warranty,never a problem so far (knocking on wood heavily now) !