There are certain aspects of bowling where the shorter bowler does have an advantage, and others where a taller bowlers can exploit his or her strengths.
Also, not saying this holds true, another issue, hand size as it pertains to the span.
Several generalizations for the vast majority of bowlers that I have noticed throughout the years and different bowling eras.
Shorter bowlers:
Have an easier job of keeping their timing. If shorter bowler has small hand, they can stay behind better and generally have an excellent clean release (ie smaller thumb) and not as susceptible to pull... turning the hand in early. They are closer to the ground and point of release. Everything is usually pretty compact, helps with foot to leverage position.
Taller bowlers: Has an easier time generating speed and loft. If they have a medium to larger span, they can easily generate side rotation and great lift. With the proper timing and height leverage, can be an explosive release.
Of course there are styles, that might be considered unorthodox, that don't even come close to making these generalizations true. Marshall Holman and Norm Duke come to mind; even WRW; question any sort of such generalizations or moldy conventional ideas.
Edited on 11/16/2006 3:50 PM
