Some routes, specifically residential heavy routes, have multiple plans for each specific day. For example, Wednesdays, when residential stops are heaviest, the route will be tighter with fewer subdivisions, but more stops. Mondays and Fridays, however, the plan will include more subdivisions and a broader area.
The only way ORION will work is if your dispatcher has been sure to "loop" or re-program EDD for each individual plan. That ain't likely to happen.
Here's why:
ORION assumes that a stop on the 1000 shelf in EDD needs to be delivered early in the day, while something on the 8000 is okay for later. So, if a subdivision is tacked on to the end of your route in EDD (8000 shelf), and the original EDD-location (actually called the HIN) is 1000, ORION will assume that subdivision needs to be delivered early, even though it doesn't matter at all. So, you end up driving from your normal 1000 shelf stops to this 8000 shelf add-cut subdivision, and then back to your 2000 shelf stuff. Most dispatchers are too overworked/lazy/ignorant to understand this, much less care enough to fix it.
I say run it how ORION says to and pocket the money until is shows up on one of their moronic "metrics" and hits them in the bonus check. That's the only way it'll get fixed.