Just because you seem to be doubting what I am telling you I hunted through the threads from August and July and found this quote from BB-Charles one of the designers (not just programmer) of the training system and the Game Engine...
BB-Charles
(461.1)Date: 7/25/2007 7:46:31 AM
The skills reported for each player take into account the player's height. For example, a player who is 6'5" and a respectable rebounder is more talented at rebounding than a player who is 7'0" and a respectable rebounder, but the 7'0" player makes up for the difference with his extra height.
Any player listed as a respectable rebounder will, when both their height and skill are combined, be approximately equivalent at rebounding.