This will not happen
Mostly down to "scout runs".
At random times in the day people will do a lap of the spawns looking for people working them. I know, since I am one of the active runners. Today, I found 3 other scouts running the other way on my lap
And before you ask, no I DO NOT start and end at the same point. I change based on where I think its going to be "active".
Lets say, I know their is a rats at marble. Rats is an easy to do spawn, so I might start their when I do my next lap. Or I might leave it to last to give some one time to work it
Its much more time affective to let some one else work my spawns as I run off to check the others and raid the person who got to 4th level before you have.