RE: What's in your daypack? What's back at camp?
I did find my gps VERY useful. We were only on trails 10 or 15 percent of the time and the rest of the time we were bushwhacking through some pretty rough stuff, sometimes in the dark. Without the gps I would have spent a LOT of time messing with a compass or going the long way around. A few times my friend who has hunted there for nearly 20 years ended up heading off in the wrong direction walking through some rough timber. I doubt he would have gotten "lost", but he was going to end up quite a bit out of the way.
Also it was nice to have all the different spots marked as waypoints so you knew when you were only a mile from the trail, truck, etc.