A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
The point is that DL hasn't published any priority rules for upgrades using instruments. No one knows.
When you ask DM agents and supervisors, you get totally different or nonsensical answers, so I think they all just make up something to say because they don't know either.