Originally Posted by
Zorak
IMO the pop-up "Compare Experiences" chart at
https://www.delta.com/content/www/en...fort-plus.html
is pretty clear that C+ by itself (i.e. absent other Medallion status) gives you Sky Priority only for boarding purposes and nothing else:
However it's easy to envision how an agent could look at the BP and see "SKY" and grant the other benefits as well.
The agent has nothing to do with marking the bag priority or not. The system does that based on status/class.