Everyone has their own ideas about kits and gear in general -- what works (for them), what doesn't work (for them), the best way to carry (again, for them). It's rare to find a one size fits all kit.

I started out with a "store bought" Ritter PSP years ago and then started adding an deleting. I ended up deleting the container and carrying what I need/use distributed on my person.

I still have an unaltered PSP in the bottom of my EDC backpack, but I don't see myself ever using it. It was designed small enough to carry in your pocket, but the other EDC gear that I use every day covers pocket carry, so the PSP gets carried as an emergency kit for somebody else. In a real emergency I'd use my EDC gear.

From what I've seen, most wilderness survival experiences start with getting lost. It's easy to do if you don't pay attention. Before I reached for the PSP, I'd reach for my GPS and compass.