Yes I'm having the feeling right now. About half way though my second round yesterday, all of a sudden, everything I've read about the proper swing made sense in my head. I hit my drivers and irons farther and straighter than I ever have before. Had I not been playing best ball with a few friends, I believe my score would have dropped considerably on the back nine.
Like you said, power from the torso and speed from the wrists, not everything from the arms The big test will be tomorrow, when I play another round to see if I can repeat this swing.
Mike