Regardless of who hunts first....we trade off during mid-day. If I hunt in the afternoon on Day 1, I will also hunt the morning of day 2....then switch.
The reason for this is simple.....If an animal is shot in the afternoon and we have to wait until morning to do a search/recovery, this won't screw up the other hunter.
This obviously won't work for bear hunting so we just take turns. It really just depends on the hunt.
ACZendal and I were partnered up in Anticosti last fall. It was originally a 4-day hunt but we lost a day due to a canceled flight. I hunted day one, he hunted day 2, I hunted the morning of day 3 and he hunted the afternoon.
About an hour into Z's hunt, he had an encounter. I then took over to hunt the last few hours since he had an opportunity.
I guess it just really boils down to the type of hunt, number of days, requirements for the trip, etc........or who is bigger and wins the thumb wrestling contest