In reading Gypsy Rhythm, I thought the arm was heavily involved in the downstroke. For example, in figure 9 in the book, it looks like the whole forearm is lifted up so the hand is level with the upper bout. Then in figure 11, the whole forearm is down so the fingers are almost even with the bottom of the guitar. In reading elsewhere around the forum, it seems like most of La Pompe is in the wrist. Should I be trying to execute la pompe with mostly the wrist?