[QUOTE=SmokeBait; If yours were not made this way, you can attach the prusik loop to the line that is on the outside of the constrictor, not the one that slides through the constrictor. This is not optimal but will work.[/QUOTE]

+1
I still use my asym stock tarp at times on my DIY HH I made from HCFU'S instructions a few years ago. Works pretty good