I used to know 17. I could run probably 10 of those as fast or faster than the bid driver.
Then, I figured out how that only got me screwed on a regular basis...
Now, I'm on a bid route. I now proudly know 3/4 of a route at best.
For a while, I had an honest supervisor, and I was pretty helpful for him. If he needed, I'd run whatever route I knew to help him out. Now that I have another spineless lazy weasel, I have reverted to maroon-mode out of self preservation. The more helpful I am to this jerk, the less I see my family. Priorities.