Diamond 3 Lobbies
There's a really poor experience that happens as soon as you hit Diamond 3 in Ranked. You go from playing normal people that play a few hours a day at most to every lobby being vs TSM, Top 50 preds, and sweaty kids that play all day long.
To hit Master now, your team essentially has to be as good as Predators, because that is the lobby you'll be placed in every game.
Does it not make more sense that Masters and Preds should play vs themselves, MAYBE including Diamond 1's? You've got people with 7k RP playing vs #1 Pred at 70k RP.
Diamond 3 being the start of that queue in ranked is really unfortunate for the Diamond players. Realizing this would increase queue time for those at the top, but you are forcing Diamond players to sweat through Predator lobbies to even get into Master. If Diamonds played within their own tier more, there would be more at Master's level because Predators wouldn't be holding them down.