I'm a pretty advanced exerciser. I've done Yoga for about 11 years, Pilates for several and have weight training experience since I was in my late 20's (I'm almost 48). I also finished a P90X rotation last year and work with many of Tony Horton's programs as well as Debbie Siebers and a variety of others so I am very experienced with working out at home with these types of programs on DVD/VHS.I have fairly recently started working with the Stability Ball and have just absolutely fallen in love with it as a..