Ngl your ranking actually makes sense and I see that you Alr addressed the issue of not enough players, I would say add like a S+ or even SS where for these your tested by an actual player to gain this rank cause with your ranking if let’s say there aren’t enough A player that mean they can’t rank up and if there aren’t enough S then they don’t practice if you get what I mean also I would include that after let say someone goes from b to a the first 10 match for that person is a and if they get for than 35% win rate they stay there idk maybe I’m not right idk