Full suspension hanging relies on using your body weight to compress your carotid arteries, therefore cutting off circulation to your brain, and rendering you unconscious within 20 seconds if done right, and death within a max of 15 minutes after that. You will need a rope of good thickness that doesn't stretch, and can support a couple times your weight, because the human body will thrash around as it dies. The knot should be placed behind your neck for a full suspension hanging, and a simple slipknot may be better than the hangman's noose based on what I've heard on ASH. The thing you tie the other end of the rope to will need to be strong, and at least a foot higher than your height. A rolling hitch or two will be used to tie the other end to the support. You'll need 2 or 3 feet more rope than your height, at least with 1 inch thick rope. It will be painful, but not like you'd think, and passing out will come quick anyways, assuming you do it correctly. From my testing, it's not that painful, even calming in a way, but SI is still a bitch, and I don't have much advice for that. A good rope to use is 1 inch thick manila rope, as that's what I've used during my testing, and it works perfectly. You will want the rope above your adams apple, as close to your jaw as you can get it, as that's there the carotid arteries are most 'vulnerable'. Having a small bit of padding may help with the rope cutting into your neck and pain related to that, but only light padding, like a washcloth. Most of my information comes from a year of browsing alt.suicide.holiday, and anecdotes from the internet, as well as my own testing.
