Question on Salon Mechanics

[NC31]

Firstly, does a Lunch or Supper salon run longer than Elevenses/Afternoon Tea/Picnics, or is it solely dependent on guest number?
Secondly, can Maladied soul cards be used for the intakes during salons? Sometimes they roll multiple of one soul aspect consecutively, and unless I get lucky with a Sweet Bones refresh timing, I occasionally end up missing one or two.

[Falc]

Yes, and no.