I was painting interior today. What I found with the -10 (and the -6 before that) is that on finish coats, you're better off masking large portions, spraying what you didn't mask, repositioning the masking a day later, and shooting the rest. On a -14 I think you could do it in two sessions, which is how I did the -6. The -10 took 3 sessions.
On the -10, I shot the baggage bulkhead, baggage floors, and passenger floors in one session, the sidewalls of the passenger floors and the walls of the passenger and luggage compartments in another session, and the front of the airplane in another session.
The reason is there are so many nooks and crannies and awkward positions, it is hard to spray everything and not miss something, all while keeping the hose from dragging through wet paint or getting overspray on something that is starting to dry.
A 90* swivel hose connection really helps keep the hose out of things, assuming you get enough airflow that way.
You can prime the whole thing in one session if you want...
By the way, if you're spraying in the driveway or yard one of the $50 "quick shade" 10'x10' canopies is an excellent dust and sun cover for your spraying sessions. 12'x12' would be even better. Something like this, but you can usually get one cheaper locally than on Amazon: