What is the best (in your opinion of course) best path for S1 kettlebell skill development? To me it seems like (with associated books/texts) to be (I have excluded skills found in "previous" books): 1) Simple & Sinister: goblet squat, halo, two hand swing, one hand swing and turkish get up. 2) Enter the kettlebell: clean, press and snatch. 3) Return of the kettlebell: Double kettlebell skills, but also, jerk (I have only browsed this book). Then there is the Russian Kettlebell Challenge, which I haven't read.