Does anyone know whether the DRO associated with combined rotational feed rates actually expects the radius or diameter of the workpiece? The Tormach manual refers to it in section 8.1.2.2 as diametral, and this is how it's labelled on the "settings" screen, but then it's referred to as a radius in section 8.1.3.1, under the heading Scaling the "Width" of the Text, and indeed that is how it's labelled on the MDI screen.
The machsupport wiki refers to OEM DRO 825 as "Rot A diameter DRO".
So which is it?