Well, it seems like Ryuusei won't have much leverage over the others with this. It's likely that their group will fall apart since betrayal keeps on being brought up. I guess it makes it easier to target Ryuusei since there's no need to guess between a duel or a certain pass like page 16 said so.
It means that after the first round, in case of a miss (against Ryuusei), Baku will then go for Ryuusei's direction in the first round, so it'll end up as a duel at the third round every single time. In a 50/50, since Baku has way more Bios, he can afford this war of attrition so to speak. Maybe this strat doesn't apply to Champ because his group wasn't founded the same way Ryuusei's was.
edit:
I'm retarded but I think it's not a plain 50/50 chance at fucking over Ryuusei because Baku has a 1/4 chance at first round too. So add that to the 50/50 in the 3rd round means in the long run Ryuusei will end up borrowing from the others. I'm not sure it'd end up becoming relevant but I think so seeing as how it was shown that Ryuusei didn't want to redistribute the Bios because it's still his leverage against the others in the group. With that in mind, I'm pretty sure Minoru's going to end up going to Champ's side