I have used the Cortex version and the 2010 GT version of the Aeropro. Right now I am using a VCORE 97 (330) which is a very solid racket, I have read many reviews regarding the new Aeropro. Many people have said that its too light and that it can be pushed around against big hitters. Is this true in your experience when demoing it? And, would any of you customize this racket in order to give it more mass? If so, how would you distribute lead and in what amount? Sometimes I think that customizing and adding lead will affect the particular dynamics of the aero design in the Aeropro. Is that so? I want to add that I have never put lead in a racket so this would be new for me.