Given that it should never lock beyond center, when does right anchor become designated as standard?. Does even the smallest change from its address angle designate it as standard?.
Except for the natural rotation of the Knees during the 'Sit Down', the 'Anchor' designation refers to the Impact Fix or Address degree of Bend. There is some latitude here, but when the Knee is decidedly straightening, the Hips are tilting and there is Standard Action.