I was talking to the person at PSA that builds up the IOE lines and supposedly it's pretty short. They positive space you, deadhead or however you want to put it, from your home airport (close to where you live) to wherever they want you to go and then you fly trips that contain a lot of flight hours/legs. It appears that the IOE is fairly short from a calendar time perspective and doesn't really have anything to do regarding base bids, etc. They fly with you as required for proficiency so not everyone will have the same amount of training. It is in the company's best interest to get you through this process in a timely manner so you can be a full fledged line pilot... After IOE is when the hurry up and wait part starts. If the subsequent classes remain large, then reserve times are short. If the stream of incoming pilots dries up, it could go very long.