Hiked Tiger Mountain with Jason today. I added more weight to my pack, but i still am yet to weigh it. I often have people lift the pack and guess and i have gotten guesses ranging from 20-30 lbs. I figure it is a little over 20 lbs, but not more than 25 lb. I figure i am doing pretty well so far. I had to take many breaks on the way up. On our way down we ran into Mike who was just starting his run up the mountain. (Crazy!) My knee is feeling pretty good thus far.