Make NPCs have certain routes. Like the one in town square gets 1, 5, 3, 2 and one that’s out by the strip club gets the ones for that area like 4. It makes it wayyyyyy easier.
Personally I would like a job for it where in the job you can ‘eat’ it like you do for meth. So it makes it easier to deliver. If you allow the eating I’m all for keeping it the same. But with the distance required it just makes too much a hassle and too little money.