DB you got me beat.  My lift kit dry weight is 18.7 Oz.  as pictured in page one of this thread. That is with a 4 to 1 mechanical advantage (ya I know that is over kill).
All of the lines are stretchy nylon including the tree to tree line which is paracord.  I almost never get the line to come up tight against the trunk.  It almost always gets caught on limbs. So the line crosses several springy limbs before being ties off. I pull the line tight not leaving slack in case the wind blows.  Now I know I am doing it all wrong but my pack does not settle overnight even when it rains.

db wrote on Sep 4^th, 2014 at 5:41am:

Its not that I like springy branches they just get in my way.
I have used all of the rope a couple of times but if I did not have that much rope there was probably another location that would have worked requiring less rope.  Having a 4 to 1 mechanical advantage requires more line to go over the pulleys making a tangle more likely.

Congrats Nanda. Lots of ways to do things. Make it your own.  up

I gotta ask, what might you do differently next time and how many pounds were you hanging? At first glance it looked like a person up there. 

DB,

I could say that it was a lot of weight but it wasn't --- I'd guess it was between 35 and 40 pounds between about 3 bags. I might be underestimating but I think I'm close.

What to do differently? Hmmm. Better pulleys would help I think (I'm watching sales now for the sailboat pulleys I want).

I also had to improvise a "web sling" that I'm back home now and perfecting. Everytime I've hoisted a dry bag of food I've prayed silently that the backpack straps wouldn't tear out of the bag!

This time around, I brought 1" webbing along that had pre-fabbed loops stiched in. With a bit of ingenuity, I configured two loops that grabbed the blue dry bag at each end and was able to be cinched on top with a carabiner to the pulley.

I think that those are two things to work from my end: Pulleys and Web sling.

I like Azalea's method too with the two double sheave blocks. I have enough rope to accomplish that and it would make the rig weigh a bit less. I win on that count as I threw my rope-n-pulley configuration on a scale tonight and top out at about 29 ounces. I have to stop feeding that set-up! 

I agree MP....and appreciate your and everyone else advice on these things. I have one Harken 20mm micro block already for about 8 bucks (probably could have found it cheaper but it was the best deal I could find at the moment). I think it's about a 1/2oz in weight versus the hardware store pulleys that are about 3.5 to 4 oz. It all adds up! Looking for others now. Either Harken or Ronstan. I might start a new thread on just "lightweight" gear because I've found gerber axes to silynyon tarps that have dropped 10s of pounds off of my portage pack....and I'm still looking