Well, I don't brag too much about those tutorials because they are old and the videos need updating, as well as some of the explanations.
I think Chris you have sewing machine and joker choker backwards. It is funny but when I first learned the tricks I had to kind of guess which trick was which and how it should be done. I was learning by myself before encountering any other player in person and those tricks are not in the Spintastics or Duncan videos ("How to be a player" doesn't even have drumbeat, I believe). I only had as reference the short clips of Herman Lau on topspinning.com, filmed in some sort of restaurant. So when I posted the tutorials I was afraid someone would say: that trick is not sewing machine . . .