How about…
- 2AnyHero-2Tank-2Heal optional RoleQueue, matchmakered against 6AnyHero Queue, with the option to unlock roles for the RoleQueue with 4 votes.
- AccountMerging instead of RoleBasedSR.
- 2HealerMaximum for OWL/Contenders with no other limitations.
If you get bad Tanks/Healers, your 2AnyHero slots can go Tank or Healer.
If you are lacking in damage, you got damage options in the Tanks/Healer roles.