Dome driver - which dome dimensions are being used?

Because I am using 64bit SGP (and Maxdome only provides 32bit dome driver), I am using the ASCOM Device Hub option for my dome driver (Device Hub then set to select MaxDomeII driver).

The ASCOM Device Hub - Dome Setup has a section for capturing dome dimensions. But SGP also has a place for capturing dome dimensions (see image attached).

Which one of these is actually getting used?

Bonus question - is the SGP entry for dome “radius at equator” actually expecting the dome radius? I seem to recall there was some confusion in the past about whether this box was meant to capture diameter or radius.

Thanks,
Dave