I have one too but I have had no success getting it working in SGP as it does not recognise them. I had a play with the ASCOM driver that is elsewhere on these forums but it is not a device that works with that (Given how many different versions of a "Temperhum" there are) and then I bought the refractor and ZWO focuser so I never went any further with it.
When I use the SCT I just have SGP set up to focus in the best tradition of elections, vote early and vote often, figuring it is better to lose the equivalent of a couple of subs time wise over the night to focus runs compared to getting a lot of throwaway, out of focus subs. It will be interesting to see how touchy the RASA is to temperature changes, the lack of a magnifying secondary mirror might actually make them better than an SCT.
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