Sorry if this is posted twice....
I bought the Sinar P that I went to look at. It's in very good condition except for what seems like deadband on the tilt/swing control. I mean if you are tilting forward and then reverse the knob to tilt back the knob turns quite a ways before the standard begins moving in the other direction. The standards are rigid and have no slop. Is this something I can repair myself? I would send it back to Sinar for a rebuild if that could be done for a couple hundred.

A question on the operation of the P. Why do the tilt/swing knobs pull out against spring tension? I see no reason for this feature.