Yeah - it really is a toughie. I'm glad to hear I'm not the only one who really feels those side leg lifts on the ball. The first time I did this workout, my groans of protest and disbelief at what Cathe was asking me to do made my hubby come in and check on me.
At least I don't groan anymore during the workout! I'll keep challenging myself with this workout and look forward to the day when I can get through it with a smile on my face just like Cathe & crew!!!