You fail to consider that there is also a random factor involved. Even if you are within that range it doesn't guarantee your player will rise/drop in GS. It just means there is a higher probability your player will rise in GS in that range but in no way is guaranteed. If you look at the analysis provided in:
http://img69.imageshack.us/img69/3757/formstudy.jpg
You will notice that even some guys that are in the "optimal range" decreased in GS but not as much as those that actually rise in GS. There are random factors and you can not look at just a few players and your sample size is not big enough to try infer the population from it.
Last edited by Monkeybiz at 4/4/2010 10:15:05 PM