Swingbuster, the purpose of the chart is to help educate people before purchasing a bat. Obviously each player is different but the chart is a good "guide" for them. Ultimately it's up to the player to pick the right bat for him/her. Also, if you'll notice I don't have a weight (ounces) chart up their yet. The chart says my son should be swinging a 32" bat. Last year he swung a 31". I just purchased a 32" bat for him last week. FWIW, it's a -11 (32" 21oz).
Sandman, To be honest I've never seen Sports Authority's chart. What is their web address?
For the rest of you who have "appreciated" my work... You're welcome.
Jason
P.S. I didn't have time this weekend to update the chart with the weight "guidelines". I will do that in the next day or two. Once it's updated I'll post back here. Maybe I'll steal the weight guidelines from Sports Authority.