There is a 2 year seat lock when you change equipment. I'm not certain if that applies to new hires or not, but I assume it does. I'm sure someone here does know, and will chime in. As far as holding SEA absent a seat lock, that number is going to be a moving target. I am at about 18 months now on the bus and was not anywhere near able to hold Seattle on the last bid. However this was the first bid where we could switch equipment, and it was a small bid. Once all of the Airbus PNW commuters (there are a bunch) get the chance to bid to where they want to be, I would imagine that number will come down.