My 13yr old son plays competitive tennis at state level. He is currently using the Prince More Control DB850(Oversize) racquet and is currently looking to switch racquets. He has tried the O3 Red and says that it's better on serves and volleys, but not as good on ground strokes. He likes the O3 Tour but finds it a little bit heavy. He is a lefty and hits with a western grip. He's also hit with LM Instict, find that it has lots of power but less control than his Prince More Control DB850. I'm thinking of getting him to try the Babolat AeroPro Drive. Any advice?