What I was going to say. That's the value of toys like this. Sure, you can say "well, I hit the bag for 5 minutes longer than yesterday, so that's probably an improvement", or "Well, in my MMA fight today I cracked three ribs, that must mean I'm improving!" but a tool that lets you quantify those numbers can be good too. I read an article on a classical Iron man website (some blog, I don't remember) and it was speculating on why isotonics (lifting weights and body weight exercises like push ups) took off compared to isometrics (pressing your hands together as hard as you can). The Isometrics should have been hugely popular since the strongest man alive during the period when isotonics were becoming popular was Charles Atlas, who would routinely tour the country following other strong men, and do his own feats. And than theirs. Better than them. And he pretty much never lost competitions to anyone. And some of his feats of strength have only recently been matched or surpassed. Compared to Isotonics, which had few advocates, except for folks doing Indian Clubbells. So, why did Isotonics become popular according to the author? Well, you can actually measure progress. Doing a 5x5 with 60 lbs will work today, but in a month or two, it wont be enough. But a 10 second exercise today will produce basically the same amount of burn in a year if you're doing it right. It's really just a matter of being able to physically measure your progress. You're right, we found students respond well when we could physically measure their progress and show them results. Its a good tool for new techniques and building up the power once the basics are in place ( stance, balance, focus etc). Thank you for your reply
