The cupped left wrist is a 'throw away preventer' in educated hands with full roll.
Moving from cupped to flat/arched is moving AWAY from throwaway. Using full roll to do it is using physics. Great for clubHEAD control, but can be a problem for clubFACE control if the role of the straightening right arm and elbow are not properly understood.
Do you mean Strong DBL Action with fully bent at the end or do you mean Strong Single Action with a slight bend?