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So, Paul, why is your polar alignment off so much that things are "sliding downhill." Isn't that just going to make your guiding even tougher?
Perhaps off topic but I have lately become quite enamoured of PA using PEMpro. The drift routine works really well and you can make adjustments in real time. I do this right around dec=0, then run a large T-Point model and ignore the PA report. Run the super model and you get great pointing and good Protrack. I'm not saying anything is wrong with the T-Point PA report. Only that it takes some time to run, make an adjustment, run to confirm, run another adjustment, etc...then finally you run a really large model and possibly find out it's saying something different about PA. As long as PA is close (and it's a compromise no matter how you do it) T-Point will do the rest.
For me, with a very obstructed view to the east, this routine gives me quite consistent results. Some testing I did showed me that my PA report out of T-Point would change quite a bit depending on how far to the west I collected points. When I collected points eqidistant from the meridian the T-Point report was quite similar to the PEMpro drift alignment. Even the author of T-Point indicated that setting PA in this manner (i.e., drift aligning around dec=0) was a reasonable compromise.
Peter
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