I play in similar tournaments and find myself playing the same type of waiting game that the others do but I am just starting to try out other, different ways of playing them.
We get 10k start stacks with a 15k add on at the break which is after level 3. Generally 30 - 50 players.
Blinds go 100/200, 2/4, 3/6, 4/8, 5/1k, 1k/2k, 2/4, 3/6, 4/8, 5/10 with 15 minute levels.
Although I do seem to do well in them by just waiting around until the blinds get to 1k/2k or 2k/4k then start open shoving whenever you get the chance. This isn't great though as my 20k stack isn't really in to great shape already...
As for your hand, UTG I am open shoving AJ all day long. Puts more pressure on these 33, 44 as you could well be holding a larger pair.