no waiting needed. First of all, make sure you are eligible for landing at Canada Place. If yes, you can just go there on Thursday ONLY,(morning is better). Line-up at the immigration department on the 2nd floor. You might need to wait for half an hour to get to your turn, and it takes about another 20 minutes for landing. + b1 `5 n* \4 F( _: s' b2 ~
This was just my experience back in 2008 and I am not sure whether all the procedures are still the same or not.