I have your Titan's baby brother a GM811G.
But I never loosen, nor tighten those. (Mine has the hand screws)
Mine have a Nylon or Delron washer under them, so they can slip for my very minor Altitude adjustments.
In other words, I set them, and forget them.
The Alt adjust mechanism holds the adjustment.
--
SonnyE
(I suggest viewed in full screen)
