Not sure what you mean by that. Good or bad
I love that model of Blue Bird servo. 12kg of torque and quite quick. Add to that they are metal geared, Ball raced, Digital , Heat sink case & cheap at $20. I have over 35 of them in my runners. Need to get more to replace the standard servo's I still have. Only had one let go on me & that was in my MP9.
Great for all 1/10th electric.
My mates run this model of servo too with no problems. Any quicker response and I feel I'm slower around the track always over correcting the fast response of the servo. Well that's me. I'm not 18 any more
