Are we speaking of the principles of ma'ai and kuzushi as mentioned earlier or different principles? Sorry Graham I'm not always on your wave length, I appreciate your patience with me.
They are but two principles. There are many. Let's say I were to use one other than those two as an example. The principle of the circle. Straight away you could view two clips from that one view and examine which person was employing that principle more. Thus nothing to do with who was better or more effective but aids in the recognition of comparing and contrasting what exactly is being done.