To be fair, Chalene Johnson is part of the Beachbody family of instructors so I don't think her periodization wt training program is a copy of STS. Beachbody did do P90X after all. As far as how heavy the wts the will be, who knows?? I've read at VF that she is going to be using the bowflex dumbbells (this may be pure speculation though) and there is a test group going. I don't think anyone would call it undulating periodization if they were using 2, 3 and 5 lb dumbbells!
Nothing about Turbo Jam was heavy wts, I know, I own every one of those dvds. All that said, I also think Chalene is a fantastic instructor for cardio. She's enthusiastic, funny, and motivating! I love the music and the way she brings attention to most members of her cast (for wt lost, good form, high energy etc.) during her workouts. How much she'll "tone down" her personality for serious wt training is anyone's guess. She has a bosu workout done years ago (it's at Collage) where she's much more mellow. She's not for everyone, nor is Tony Horton. Depending on the cost, I will look hard at her program just because I like Chalene so much and I like variety. (I ordered STS too.) JMO.
Jonahnah
Chocolate IS the answer, regardless of the question.