If I can add- Down and Out is not two moves but one move down an incline swing plane- preferably the one you came up on, out to the ball as the hands drive to the aiming point perparing to put #3 pp on the ball. I think some see it as a dip of the shoulder and then an out move to the ball. The shoulder rides the incline plane.
I think this is a very important point to make, especially for beginners. Last fall, before I discovered TGM, I was experimenting with trying to drop my hands straight down from the top and then curving out. Some decent shots can be hit this way, but if feels really awkward and it is hard to be consistent. Actually now that I think about it, the good shots may have just had this feeling but were really on plane. Staying on plane the whole way is a much more intuitive and feels oh so much better.