I was surprised when I heard it to, but people that are there now would be able to give more specific details. I'm just going off of what one person said. With that being said SEA is expanding at SKW, but they're still very senior so don't expect to move up as quickly as you would at a base out East.
As far as premium pay is concerned it's usually 150% or 200%. I guess it could be whatever you want to wheel and deal with crew scheduling on. At SKW it's mostly been 150%. I saw 200% for awhile last Christmas at Horizon though.