Since the late 90s, I've been a fan of the Thunder 28 inch racquet (850), which I still own. When I saw this one at the store back in March of this year, I got goose bumps, so I bought it and tested it out. Wow! It has really taken my game up a few notches. My backhand has improved, I don't have to work so hard to get power on my serve and just to mention the power and control added to my forehand. And to my opponents' surprise, when they think I am out of the point, I am able to make them hit at least one more ball.
I am still re-acquainting myself with it, but if you've ever played with a 28 inch racquet before, it's like that first love, something you never forget! Try it out and if you like it, go back and buy a second one like I did. Take care and keep it in play!