Until recently I've been using a kelty redwing 44 for summer and a a kelty coyote 80 for winter (which has a psychological pain associates with it due to size). I'm looking to go lighter and am looking at either a ula circuit or gg mariposa. I love the large side pocket on the mariposa so I can store my tarp and maybe even hammock outside of the pack. My summer base weight, not including pack, is between 14 to 15 pounds. I read the new mariposa is more durable, but the ula seems to be more solid all around. Any help or input would be appreciated.