Possibly #6

It’s funny how this page popped up in my health and fitness research today as I nurse my injured rotator cuff back to health. I may be guilty of #6. Do be aware of these training tips/mistakes to avoid injury and or damage. Which one these would you say you are guilty of? http://www.muscleandfitness.com/news-and-features/galleries/training/7-reasons-your-rotator-cuffs-hate-you