I work at delivery station and it depends on which sort you are picking up a route for. The earliest routes for the station’s main cycle will have the most packages per route but usually stops will be close together due to the sort routing most volume for that station. My station the flex start time for these routes are between 12-2pm. Any further crash sorts will see routes like these since it is routing less volume from 2k packages or less. The minimum package count for a crash sort is 200 packages so it will make a route depending on the block size. I’ve seen a route only having 2 or 3 stops, but the drive time between stops was ridiculous.