Anyone who has competed in judo knows the bigger/stronger guys will hand it to you with comparable skill set. Watching the team events in IJF competition the -90k guys try to bully the the -81k guys. Once they see they can’t do it the -81k guys thru their toughness and tenacity wear down the -90k guys. Not all the time. But the -90k guys know they are in for a battle.
I think that’s true 81K is tough, tough division. Some of those guys are incredible.