Hi folks my name is Robert and I have a problem. *sounds like a counselling session* Anyway I just recently bought myself a spare nsix one tour 90 in 4 3/8 grip size. Silly me I didn't get a 4 1/2 like my first one. Anyway my problem is I find that even though the grip size difference is minimal, I get very different results between the two sticks. With the new 4 3/8 grip n6.1, I shank A LOT of one handed topspin backhands. But with my old 4 1/2 grip size, I play the backhand fine but I feel it is more whippier due to the bigger handle (and consequently more weight in the handle). So folks what do you think is better? Stay with the 4 1/2 grip and have consistent backhands but less power (due to the more headlightedness)? Or go with the new 4 3/8 grip size and have more power but spray my backhands everywhere? Your input is much appreciated, Robert.