Re the Six Moon Designs Starlite--I have its little brother, the Comet (since discontinued). I've carried up to 37 lbs comfortably in it (with the stays). Well, my shoulders, back and hips were comfortable--my knees and feet were screaming! But it will definitely carry up to the 35 lbs. that Six Moon Designs says it will!
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey