Big Strong Fast Light
Here's an idea from a book on Iaido. At the beginning of a practitioner's training they copy the movement. They then make the movement big and fluid. They practice this way over and over until they feel competent. They now begin to make the movement dynamic while maintaining the original feeling of "Big". They practice this way over and over until they feel competent. Then they start to add speed to the movement. I think that rather than speed, correct timing should be used. They practice ad nauseum. Finally they try to make the movement feather light, without sacrificing any other qualities of the movement. I can say without a doubt my teachers have these qualities and they can DANCE, but their waza sometimes feels like being run over by a Mac truck.