Is there a reason why you've chosen partial? This seems like one of the most painful and difficult methods to get "correctly" as the SI is intense. Even after you manage to pass out, the body's natural reaction is going to be to thrash and fight, and that could loosen the rope, and basically cause you to wake up with nothing more than a severe headache and some major bruising and neck damage. The things that I've read that have made this actually work require more - people who are intoxicated, tranquilized, hands and feet tied, bag method, etc. Maybe hold off on things for a while, think about things, do a little more method research if there's absolutely no other way to stick around - of course, the best case is that you're able to work through things and stay here until your natural time.