I'm considering buying a new racquet and I've came across a few good ones. But i need reccomendation/reviews on MP 99 & 100 & also NS 9000. I heard the NS 9000 isnt really suited for guys as its head light, even the shopkeeper said most guys prefer MP 99. Can someone explain to me?

Why not try it out yourself? I have Cab20ms, Cab39ms, NS8k, NS9K-x (in price order). They all work great for me. By the way, I am a guy. I don't understand why the shopkeeper try to sell you a MP99. NS9K has higher profit margin...