Many flights are only 1x day. Something like PIT. There were times when the Airbus was doing it that it was a full 24 hr layover in PIT, but there were also occasions when you would fly out and DH back (or DH out and fly back). Makes for a long day either way but as long it is legal and fits 117, are these the kinds of changes we can expect coming? It would suck to lose those kinds of layovers. I don't have a problem with a 24 hr layover when it's in the mid/east coast where you arrive 4-6pm and then leave 4-6pm the next day. If it's an east coast flight, it still ends up racking good flight time per day.
Have as many SEA overnights as possible, on the Bus you can then be defacto reserve. Someone calls out sick for a 7am flight the next day? You have been reassigned now in SEA today and you'll do that flight tomorrow. Your flight at 10 am can then be recovered by a LA/SF reserve who DHs up on a 6am flight to SEA and off they go. This is one way to have 30 Buses in SEA and still do it with pilot bases only in SF and LA.