So today I hit with a leaded up Pro Kennex type C that must have been nearing 14 ounces with about the same balance. The racquet was strung at 68 (10 pounds higher than my regular tension). Just so you guys know I normally play with a Tour Diablo MP that weighs about 11 ounces. Before I stepped on the court i was expecting to have to hit the heck out of the ball to get it over the net because of the high tension. Boy was I wrong! As a matter of fact, for the first 20 minutes I could barely keep the ball in at all. I also found myself off balance on about 70% of the shots (pretty much unless they were hit directly to me). Because this was my first experience playing with a frame that weighs more than 13 ounces, I was shocked to find the HUGE effect racquet weight can have on my game. I am by no means a weak guy so I never expected to not be able to handle a 14 oz racquet. I would like to hear some feedback from you guys as to why the racquet was producing so much uncontrolable power. Of course the timing in my swings had to adjust, but I do not feel like this was the main reason as to why I was hitting out on the ball so much.