After judging the weight of yours vs mine, I don't think you're overloaded at all! Seriously, as everyone pointed out, mess kit, secondary fire starters, water filter, plastic/tarp, and keep the rope (just in case). I had a friend hike almost all of the adriondiak trail, he said that in the first couple weeks the ground was littered with all kinds of high end gear. People got tired of all that dead weight and minimized on the go. I do have my main backpack with essentials, and then have a couple carry bags with shoulder straps. They have some of the comfort items that would make life easier, but could be dropped in a pinch. Either way, with all my crap, and at fifty yrs old, I'm not running too far with all my gear. I want to stay close to be able to sneak around and pick off whatever *******s are looting my place. If there's a bio/nuclear hazard then I'm bugging out in my vehicle stocked as full as I can get, both for carrying capacity and speed/distance I can put between me and the hazard.