OK, you guys have my interest with all this whoopie sling stuff and like Shug says, it's too cool a name not to use it. I am going to replace the HH suspension lines with six foot whoopie slings. I am using 1 inch polyester webbing with ring buckles now and I need to know if I can use a marlin spike hitch in the polyester webbing and attach the whoopie sling to it. I like the idea of the webbing to be used on different diameter trees and to allow for different distances between trees. Never really been too keen on tree huggers but I might have to adjust my thinking. BTW, I can't believe how far this forum has come and how many people are converting. Thanks to all for sharing info.