RE: Hunting all day during pre rut.
The next 14 days are the absolute BEST for sitting all day. I sat all day last saturday and sunday, and beginning this Friday will be doing the same thing for the next 10 days, or BBD, whichever is first.
Sitting all day requires some endurance, it's not easy. If you find yourself really tired, sleep in till 8 one day, head to the stand at 9, and finish the day there.