I like leap frogging because it maximizes the amount of time a person can have under the pack - you’ll be working all day. If doing a trip all the way back to the mother ship, you’re limited to full, or at least half trips. It also gives your body much needed breaks throughout the day as you backtrack for the next load.
The worst case scenario is doing a full trip back to the truck and you start going lame after two long round trips - forced death marches are hard on even the tough guys - with half an elk 6 miles in and a bum knee you’re going to need help. Leap frogging let’s you ease up and pace yourself to nurse a knee to get it all out. In practice we go balls to the wall and what happens happens, but from the couch it seems to make sense. Lol
While leap frogging an elk I’ve tagged a nice mule deer, so there’s that if seasons overlap.
It must also come down to how a person’s brain works - some friends have to go heavy/fast and all the way to the truck, or it’s mentally painful, while I don’t mind grinding it out like a tortoise from sun up to sun down with a reasonable load.
I also enjoy the area I hunt - the more time I can spend on the mountain the better - I’ve been known to slow down and enjoy the view even if it takes a few extra days.