Thank you so much for a very informative post! It really was all I wanted to know about upgrades for years of being a Marriott Rewards member, but didn't know who/where to ask. If I may bug the group one more time, what is etiquette for these sorts of "thank you" posts. Do you post a thank you reply or just PM the person who answered your question? I see benefits to both, but want to comply with whatever the FT group's thinking is.