The basic approach is very good! We are building fine motor skills, not a sixpack in our face. That means thousands of lower impact exercizes. Fine tuning the 10 minute intervals is another story. The proof is always in the pudding. If you are successful, it pretty much doesn't matter what the naysayers think or post. The real challenge is when we try to take what works for us and move that concept to apply to others. Then it can be useful to have done what we do for a long time.