Actually, the Single R33s did not run during the summer so during that time, the ran 10-car consists.
Conjolio, please get off the drugs. It's not that serious.
And to add to what you said, the fact that the and lines are isolated have NOTHING to do with ridership numbers. It's the areas they serve that just happen to be very dense.
But the first train is supposed to ARRIVE in the next couple months. Then begin revenue service May 13th as stated by Snowblock. Plenty of time to get out the kinks before 30-Day in service testing which would technically begin on that first revenue run. What happens AFTERWARD can be anything since anything can happen to cause the train to be pulled out of service for a bit.