it might be worth trying to have pugs without ts3. in T1 they just go to their PUG server and have the entire picking process and set positions in there. with quickchat, communicating will still be possible though obviously not as good. the private sever could be opened up so those in a pub can leave and join, instead of handing out the password to everyone. if there was a way to lock the teams at 7v7 and prevent anyone else joining a team it could work. you're forced to spectate in t1 whens there's a game in progress, which would be ideal but of course there isn't a spec mode in legions anymore...