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I can't answer all your questions but I can tell you that you need the "AAG Cloudwatcher NG" driver, not the plain "AAG Cloudwatcher". I have no idea what the plain one without "NG" is for, bit it doesn't work with my Cloudwatcher. but the "NG" one does.
Second, there is a new bug in the INDI Cloudwatcher NG that has been resolved, but the driver has not yet been updated. This new bug only occurred within the last month - so if you are just now downloading the driver, you have the buggy version.
Right OK thats really good to know. Hopefully things will work once the driver is updated. Once it is working then hopefully I can answer my first question for myself.
Thanks a lot for the response, that was really helpful!