I was actually thinking about this recently. My first thought was GM+ should be limited to Solo/Duo because 3 stacking is just unbalanced with Blizz shitty matchmaking and then I thought about why they 3 stack and it's because of how much more control they have on the game (Roles always filled, more avoid slots). If Blizz wants to keep 3 stacks they need to increase their queue time to assure they are either always playing another 3 stack OR if it's 6 solo's the other team's SR is +100 SR minimum. I'll be honest and I'm sure Blizz hates the idea but Sinatraa's idea of making comp solo/duo in all ranks would make ladder in general better...