jr 9411's splines

[Ed Deaver]

Has anyone had difficulty with Dubro or Hanger 9 HD servo arms being sloppy on the metal output gears of the 9411's.
 
Mine have a slight amount of slop, and it looks like it is in the splines.  My ail can move 1/8" without the digital buzz from the servo, on both of them.  Of course the movement of the spline would be barely noticeable with the movement of the servo arm.
 
Thanx in advance for the interest and answers.
 
ed
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