“ I tried paracord, and it worked ok with a very light bag. The problem is, with a heavier load, the line wouldn't slide across the limb hardly at all.”

I know what you mean. The 3mm black or any other flat-color paracord can snag a little. Then I tried the rainbow colored paracord http://www.campingworld.com/shopping/cam...ffiliateid=2626 and that slid MUCH easier over harsh bark. Plus, it is easier to see.

I use the PCT method and have good luck with throwing my bag of stone over a limb. I’ve had to do this more often now that I’ve moved out of the Midwest. I also do the half hitch reaching high above me w/o needing either end of the rope to do the hitch.

-Barry
The mountains were made for Tevas