I was trying to get into a dungeon with queue scaling (all mobs vet 16, all players scaled to vet 16).
In the article on the new group tool, it was stated that having a group of the right composition would cause a queue to pop instantly.
In my experience last night, this was not the case. We had a tank, two dps and a healer; a v4, v5, v11 and v16. Each chose their role in the tool and just that role. We queued for the one dungeon we wanted to do. Nothing for 5mins. If I went into the dungeon, it was scaled the traditional way, to the leader at v5.
So I tried the old trick: drop one person from group, join the queue, invite that person again. We were dropped from the queue instead.
In the end we just did it at v4.
I submitted a bug report, but I was wondering if anyone had any further info or workarounds.