<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by fakecd:
...By the way, do the upgraded pax also get priority taggages? </font>
If you mean operational upgrade, from my experience the answer is no. But miles upgrades, yes.
Not only are First Class bags tagged as such but they travel in their own container. As a rule they are always the first to be offloaded and delivered separately to the carousel. For example, at BKK (where you can hear the trucks as they approach the carousels) I've noticed that time between when the First Class bags show up and the rest is quite significant.