Just changed out my steering servo last night on my t-maxx,have tryed everything to stop it from humming.Turn it to right comes back to centers stops humming, turn it left comes almost all the way back to center but doesn't stop humming.I'm under the impression that it should not make any noise back at center position,have put my servo saver every position possible to stop it from humming,or is it normal to hum a little.PLEASE HELP ABOUT TO LOSE MY MIND....