No need for it to factor into ratings at all. All I want is a color code to know which of the four chemistry groups a player is in. I don't even care whether it knows what the conflicts are--just which of the 4 chemistry groups.
Ben's new page captures it perfectly--a colored background for the birthday is plenty, e.g.,
http://www.younglifenorthdekalb.com/...draftclass.php
Cuervo used to do something similar on the IHOF site.