There is an interesting thread
HERE about a modification to the PCT hang which I have tried, and it works very well. I used the
7mm Antal rings as
recommended by Kaptainkriz later in the thread, with video detailing how to use it. I used the
bear bag line from Lawson and some 1" webbing I had on hand for the part that wraps over the tree branch.
I recently hoisted food for 3 people on a 3-day, 2-night trip and with food weight of about 14-15 lbs it was super easy since the pulley setup provides a 2:1 mechanical advantage. There is a bit of a learning curve to it, but after a couple of times working through the process you realize it isn't all that complicated. I think Kaptainkriz's recommended Antal rings are the perfect choice for the 2 pulley points.
Yes, the cost is a bit steep for a bear bagging setup, but this is pretty much the ultimate solution to the problem of hoisting a hefty load.
No, it doesn't make it any easier to sling that damn rock over the branch, lol!