Hello neighbors,
I've recently begun transitioning to a lighter backpacking style after hauling my gear from the Boy Scouts for the last 15 years. Over the years I have incrementally improved my hydration, cooking, and clothing, and now am getting ready to replace the big three.
I've already replaced my external frame pack for a conventional internal frame, so I'm going to hold off on a new pack for tomorrow. I can't afford the rest at once, so I would like some advice as to whether it would be a bigger improvement now to purchase a better sleeping bag or shelter system? I don't do thru-hikes, but I do hike backcountry, usually with one or two other people, the longest having been a week without resupply.
The sleeping bag (Slumberjack) currently weighs 2230g (4.9lb), and the 2P tent (Eurkea Zeus Exos) with poles and stakes weighs 1952g (4.3lb) without a ground tarp.
My thinking has been to get a new sleeping bag or a quilt since I could split the tent with a partner. Then again, I am experimenting with tarp shelters, and the weight savings of a tarp is quite large on top of its inherent versatility.
Thoughts?

