Jack - I bought one of these and have it modified to 11.4 oz, with a swing weight around 328. I still don't have the stability in the hoop that I want, so I've taken some of the weight out of the throat and added 2 grams each at 3 and 9. Stock weight, the racquet does not cut it for me, and I have yet to find a setup I like, but I will keep trying. Serving - both power and direction - has been the best part so far. Slices are also good; ground strikes and volleys aren't there yet.
Currently, rehabbing a ruptured Achilles tendon. Hope to be back in action Spring 2014.