Update
Well finally got some clear sky and I wanted to report back a few things.
First the use of pinpoint and Tpoint mapper is superb. Of the 846 points I mapped last night only two failed. That was because it was trying to look through the pitch of the roll off roof. My polar alignment is now pretty good. Using 50 points on the east in one sector I got the PA to 11 seconds in altitude and 15 seconds in azimuth.
However, that is where the fun stopped. I found slap in the dec drive too. Not a lot but enough to be a problem. It seems that if I tighten up the balance knob and then turn it back one tick as per the manual the entire drive has about a millimeter or two of movement. I think the spring in the spring plunger assembly has lost some of its tension. I checked the screws on the spring plunger, and then set these back to factory defaults. So now to hunt down a new spring. The drive still works and I will now need another clear night to test to see if this is the last issue. As sort of confirmation I noted that movement on the scatter plot is in the same direction as this apparent slap. That being; points plotted in north and south hemispheres have similar separation angles but each hemisphere has a large separation angle. Is my thinking correct here?
Its been fun so far.
Once I get this nutted I will have a huge sense of satisfaction that some just don't get with a PME.
