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The manual really doesn't reveal too much more - so I stuck with 1 star aligns.
To this I added a 30 star sky model from MaxPoint - brought the pointing error from 5 arc minutes down to 1.7. MaxPoint estimates my SCP alignment to be within 30 arc seconds on Alt and Az - and flexure has about halved moving from Celestron to Losmandy saddles - so I'm definately getting better.
Tracking has improved about 4 fourfold - I see about a 12 arc second RA drift in a 10 minute shot now. I've tuned the DEC backlash better am are stilling learning optimal guiding settings
I then tried a PC based goto NGC 2070 - it landed spot on - see attached shots:
360 seconds unguided, 600 seconds unguided and 600 seconds guided.
I still have to tune PHD's settings - but I'm slowly getting there.
PS
All these shots - well I haven't adjusted the focus once in 4 months - carbon fibre seems to keep its expansion well under control!
Matthew
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