Yep....Watch a lot of the golfers back years ago and you see several with the reverse C. Johnny Miller being one of them in his hay day.The follow through looks like a reverse C. And its a killer on the lower back and body over time. Puts all the wrong stresses on the wrong parts of the body. Certainly you can win with it (see Tiger Woods lol) but the longevity is the issue. Tiger knew this from the start and has worked really hard to correct that. But a lot of damage was done to his body.