i have no idea. i've heard about upselling/downselling in negotiations with another account on the same server. the best attempt i've had of making high whites low gray players is getting them at 18 with around 40% and then just training their white skills over the next 3-4 seasons while i'm not using them. but i don't end up with 300+% in multiple categories that way. also giving every special sponsor skills bonus (and any other activity that gives bonus skills points) to that player would help too.