Seems easier just to disable queuing altogether. Then if you're worried about bandwidth usage just configure your "global maximum number of connections" and your "global rate limits" to whatever you need them to be. Also keep uTP enabled (under Options / Connection) if you're concerned about the torrent client using up your bandwidth while using the internet.
It's not the answer you're looking for but it might be worth giving a try.
Yes - But keep both TCP and uTP enabled (should be the default setting unless you changed it).