I agree with Bob, the main question is if he is demanding to play up the boards in the track and out, or if he is willing to play a little bit of a bounce. The Dry/R is a very mild ball, but will still move alot more off the dry than any plastic ball. On the other hand, the XXXL would be a better choice if he only wants to carry one ball, as it would pick a 10 pin alot easier and would probably be more versatile all around for him unless he already carries a plastic or rubber ball.