Hello, I have used a modified medium ALICE pack for about ten years. I have one 3-4 day group trip every year with 3-8 friends, depending on how many can make it. Temperature usually gets down in the 20's. Ten miles a day with 3-4000 feet elevation is the hardest hike, and we are equally likely to be paddling and portaging. I need a lighter pack. Any suggestions? Thanks.