If I could choose method it would be by suicide bag with nitrogen or helium that seem to be best, but I dont have money so hanging is my only choice (full suspension) but yeah I agree when done right it is pretty quick and reliable but some pain is there and SI too. SO I would not recommend unless no option for suicide bag, but it is cheap and pretty reliable that is why so many people decide to choose this way. More reliable than train, jumping even firearm (to many possibilities that something can go wrong)