What a load of thread creep! The answer is simple, circling minima is determined under PAN OPS for the specific runway and approach and provides protection both vertical and lateral. The VOR may be offset for instance, this could determine a different minima based on the approach track. No additives to circling minima and you have to keep the "aerodrome environment" in sight, and circle within the prescribed radius. As correctly stated, the missed approach from a circle to land is based on the instrument approach carried out. Individual aircraft configs are left up to SOPs