Exactly!!! That's how Jim teaches it, but I couldn't find that video.
But I thought
@Digital Atheist had a pretty decent looking motion. But I just wonder what happens when he follows through looking at the palm instead of looking at the wristwatch. It just seems to me like you'd get horribly jammed. I have a hard time doing it myself since looking at my wristwatch is so ingrained in my motion. I always try to see if I can get into that Pete Sampras position, where I'm looking at the wristwatch at (or even above) eye level. Which is hard. Normally, even the pros don't do it. But Pete always did. I find those photos of Pete pretty amazing.