I recently hurt my elbow and wrist by playing with a very heavy racquet, since my Carbonex 9 Tour had to be restrung. A quick background... I've been playing regularly for close to 7 years and am considered a good club level player, mostly doubles. I'm predominantly a backhand player, with good backhand control and powerful backhand clears. I can flick the shuttle from the back-hand corner underarm (below waist level) to the baseline. But I have a weak forehand underarm, though I have poweful smashes, deceptive drops and half-shots, if the shuttle goes below my waist level in the forehand, I have a weak return. In fact I cover my forehand while receiving shots and have a good shot return on my backhand. Even if the shot goes to my forehand a feet or so away from my body, I still rotate my wrist and reach for it in the backhand. Wierd, but that's the way I play. So, I put my thumb under a lot of stress all the time. When the string on my Carbonex 9 tour broke, I borrowed my friends back-up racquet (Fei, ever heard that name?) which seemed to weigh more than double my 2U carbonex. So, I hurt myself now, and I'm experiencing pain behind my thumb. So, I'm looking at buying a lightest racquet possible, with good control and not compromising the smashes. The leaves me with 4U MP88 or AT700. What would be the suggestion? Thanks a bunch!