I have both racquets: POG mid and OS. However, I want to pin down one for my major stick so that I simply use it every time. However I can't decide. I like both. The Mid is kinda easier to whip around but less powerful. The OS is a bit clumsy running around the court but is definately have more poise and power. I am a weak playing who just started playing tennis 5 months ago. But I do practice 2-3 times/week and see a coach every month.