I'm a intermediate player looking for a all out attacking racket (after using sissy rackets for all these years) and I've narrowed my choices to w11/11a and w11i. I know the difference between w11 and w11a is just the paint job, but I want to know more about how it compares to w11i. For as far as I know, all the wXXi rackets are all a little bit different from the original. can some one please gave me a review on the differences in the play between these rackets?