Does the Head I Prestige play very different than the I Radical? I own a pair of I Radicals MP, but I would like to customize 'm to be more similar to the I Prestige. I think I should add some weight to the Radical and that should do it, because I can't make the racquet 1 point more flexible to be the same as the Prestige. Besides that: are there any other things I could do to make it play more like the I Prestige? Is this possible or are they just too different from each other?