I think the issue is solely with SGP and the way it implements dome/scope slaving. I've brought this issue up with Jared (and the developer of the Nexdome ASCOM Driver). Jared hasn't done anything that I'm aware of and the Nexdome developer points at SGP as the issue - so what can be done? I have heard that the SkyX dome control does move both the dome/scope simultaneously - but I don't want to move over to the SkyX - yet.