I was doing a search on NW.com for seats in F for BWI-DAY this weekend (so I could view the F seat maps to find out if this lowly Silver will be upgraded on his flights on Saturday) and it brought up a fare with the fare basis of HR2F for first class seating - anyone ever heard of this? H fares are economy class seating - I didn't think that H-class was a Y-up type fare.