Originally Posted by
jhurwitz
I don't have personal experience with this, but my reading of the
upgrade rules was a bit different. I thought that there were two waitlists: the immediate upgrade waitlist clears "in the order placed on the upgrade waitlist" whereas the discounted fare upgrade list for "your elite tier group will have upgrades cleared in the order of fare class booked." In my reading, the MVPG on the Y fare would get the upgrade before the 75K on the R fare -- though perhaps this is only the case until the the 75K upgrade window starts?
If my understanding is incorrect, I'd love to know so that I don't rely on it in the future

That was my reading as well, although it appears this board is as conflicted about it as I am...