Some minor issues I ran into with a brand new Spirit GT unit:
-During first time setup with the wizard, throttle output is enabled with no way to disable it until running through the full wizard. On subsequent startups it defaults to throttle off as expected.
-After restarting software and running the setup wizard again from the main screen, it doesn't ask what unit to use and instead defaults to Spirit (1). Then later it complains I selected the wrong unit type and corrects itself to Spirit GT, as far as I can see no other effects but not as it should be.