If you think about it, the "limit" is 20 just because thats where BB decided to stop nickname the numbers, but the GE doesn't care about any nicknames, it calculates a number, whether its 1.297 or 25.01. Also you can tell by the increased DMI, high ratings, really anything...I think BB's record for OD rating in a game was acheived by PG SG SF that had like 25 26 OD each, it was like 22OD rating? with 1-3-1 zone I think. Numbers don't have limits