Troy, thanks for the info on the offset of the south pole vs magnetic south pole. I couldn't remember how many degrees it was. Aligning via solar noon should hopefully fix things though :-)
I've read that the latitude adjustment on the SkyWatcher mounts is not that accurate. I've seen a photo of a spirit level that electronically measures this, but cannot find one online to buy
Since I'm still using the scope at home, and I've already set the latitude, I presume I don't have to reset it everytime I go out observing ;-)
I would have thought the better order would be:
rough polar alignment
3 star alignment
drift alignment
Dave