I know it's supposed to be designed by Agassi. It's like he wanted to take away from it's spinning potential (since OS raquets are supposed to be good spinners). I mean, because, if he just wanted a denser string pattern, for more control, in general, instead of the 18 x 19 pattern he used, I think we would have gone for an 18 x 20 pattern, which is more standard and better looking, I think. When you look at this raquet's string bed, because of the wierd (to me, at least) pattern, the spaces formed by the strings are very rectangular, instead of squarish, as in most raquets. Imo, Agassi's idea behind the 18 x 19 pattern is that of keeping spin as low as a 18 x 20, but still maintaing a bit more power. I haven't tested this raquet, yet, but I'm looking forward to comparing it with the POG OS. I'm kind of anticipating much less spin with the Rad OS than with the POG OS. However, I'm curious to see which of the two has better directional accuracy. Comments?