Thanks, Joe. I'll give them a try. In the meantime I've discovered WCS
http://wcs.ruthner.at/index-en.htm which was recommended in another thread. More expensive but it tells you exactly how much to adjust your azimuth or altitude in a single step. Sounds like a great time saver - I've been taking 30 - 60 minutes to get really good alignment eyeballing through a reticle eyepiece.