Well..it WORKED..PIT-ORD-EWR was ONE E500!!!!

Now for 2 more questions....

XXX-YYY-ZZZ

X-Y express, no F, Y-Z has F. Does the mileage needed go X-Z OR Y-Z?


How about ....
AAA-BBB-CCC-DDD

A-B no F
B-C F
C-D F

Is it mileage A-D, OR B-D?

My example would be:
ABE-IAD-ORD-BOS. ABE-BOS is >500. No F ABE-IAD. Does that still get ONE e500???

This is CONFUSING!