NJ transit does do the minimum of express for the farther out places from NYC. Nothing as in-depth as you're explaining. But as you said. The numbers wouldn't s

NJ transit does do the minimum of express for the farther out places from NYC. Nothing as in-depth as you're explaining. But as you said. The numbers wouldn't support making things too much more complex. That's why my original post mentioned a limit or 7 stops between philly and NYC as an example of a semi-express train. Though a hypothetical express train would probably actually be 5 stops max.