I bought the download version of the SA vids and put them on my ipod. One of the unexpected benefits (although I should have expected it) is that I can watch the vids over and over when I'm on transit or otherwise on my butt, and I'm pretty much starting to memorize them. By the time I hit the slopes I'll have the moves in muscle memory.
Yes! That's something really cool about these DVDs. I do the same thing and love the fact that in between classes I can work on snowboarding, something I've never been able to do before. All in all though do you like the instruction?