There is an amount of reserves needed to be able to drop a trip and for whatever reason they say that SEA is properly staffed even though the reserve grid says otherwise. In other words it does not look like you will be able to drop any trips in the near future out of SEA but I heard in LAX you can on most days.

About the upgrading once most people reach 1000 they can most likely hold a class date. If not one month as a super senior FO before being awarded a class.