User blog comment:Commander Marko/Will matchmaking ever find true balance?/@comment-5038450-20131105051846/@comment-4652200-20131106024102

Solo Q should be SOLO, they should make a separate Duo queue IMO.

Alternatively - just limiting duos to 1 tier difference e.g. Bronze can only duo with Bronze and Silver, Silver can duo only with Bronze, Silver and Gold etc.