Originally Posted by NNH
I think you may get the EQMs: I occasionally take the $50 upgrade on Alaska, and it shows up as an elite segment on my NW account.
But that's from airline to airline. If flying NW and posting to WPs, it'd show up as F/X (Class Flown/Paid) where X is the class paid and thus would receive 100% EQM.
aloha