Tiger moved a stick, and in response his ball dropped. It clearly moved, but did not move back i.e. oscillate. This is a two stroke penalty. The Golf Channel reported that Tiger did not impose the penalty on himself, they showed him the film and assessed the penalty to him. He claimed he thought the ball oscillated.
Sheesh. I have lousy vision and could easily see the ball move (but not move back) in the video, and Tiger was right on top of his ball and he claims he thought it oscillated? Why am I skeptical? Oh well, I'll just have to put in the "metric" and tally this all up that way.
Had Tiger noticed the ball starting to move as he lifted the stick and put the stick back, would there still have been a penalty had the ball returned to its original position- aka would this be considered a non-penalized oscillation. I ask because this happened to me the other day when I started to move a small pine cone that I did not think was touching my ball. It was a casual round and I did not count a penalty because the ball returned to its original position.