This helped me a lot. I like the fact that you showed carefully how each leg should look. This is very informative, nicely done, and people like myself will appreciate the fact that you respected the intelligence of the viewers while still holding their hands and showing them exactly what they need to know, rather than assuming that the audience is either already skilled at Flash (or, perhaps worse still, that we really are 'dummies'). I respect you for offering up your animation to trace for those who are starting out and need training wheels, so to speak. It takes a lot of guts to trust people not to take advantage of that generosity. Again, a great tutorial, possibly the best one I've read.