So, I noticed in a thread in the HO forum a comment about the BN F9s still being used in Helper service into this 80s? I have a Kato F9 in BN Green and Black that I've had for years and not known quite what to do with. I usually run it with some Rivarossi NP passenger cars and Concor WP passenger cars and just call it an early 70s Amtrak train. Which may not itself be accurate given the F unit's paint scheme. Is it true, could I in theory justify this unit being used in a freight capacity? At least for purposes of my Railroad club?