what are your thoughts on the SN method?
SN loses a competition with other hypoxia-related methods in my eyes. Here is my subjective comparison of various methods based on my understanding of them:
1. Complexity (the amount of details to be cared of)
Hanging: low
Exit bag with inert gas: medium
Plastic bag over head: low
Drowning: low
SN (w/o following the recommended regime): low
SN (following the recommended regime): high
2. Odds of failure due to making a mistake or a specific physiological response
Hanging: low/medium
Exit bag with inert gas: medium
Plastic bag over head: low
Drowning: very low
SN: medium
3. Damage to health in case of interrupting the procedure by yourself (if you change your mind)
Hanging: medium/high chances (you can get a mechanical trauma)
Exit bag with inert gas: low chances
Plastic bag over head: low chances
Drowning: low chances
SN: medium chances (antidote may "help" too late)
4. Time required for preparations (once you obtained all necessary stuff)
Hanging: probably less than 15 min
Exit bag with inert gas: probably less than 30 min
Plastic bag over head: probably less than 30 min
Drowning: probably less than 30 min
SN (w/o following the recommended regime): probably less than 30 min
SN (following the recommended regime): several hours
5. Time required to pass out (since the moment of starting the final procedure)
Hanging: probably less than 1 min
Exit bag with inert gas: probably less than 2 min
Plastic bag over head: probably less than 7 min
Drowning: probably less than 5 min
SN: probably 10 - 20 min
6. Painfulness/unpleasantness
Hanging: high
Exit bag with inert gas: nearly none
Plastic bag over head: medium
Drowning (SWB): low
Drowning (with hypercapnic alarm): medium
SN: low/medium/high depending on the physiological response
7. Possibility of making death looking like accidental (without assistance)
Hanging: no
Exit bag with inert gas: no
Plastic bag over head: no
Drowning: yes
SN: unlikely / very unreliably
8. Possibility to make safe trial experiments:
Hanging: prone to causing damage
Exit bag with inert gas: difficult (prone to dying)
Plastic bag over head: difficult (prone to dying)
Drowning: easy (breath holding)
SN: prone to causing damage
Conclusion: SN looks pretty weak for me when compared to SWB and exit bag (only disadvantages and literally no advantages). Sometimes it may be better than plastic bag over head or drowning with hypercapnic alarm with regard to unpleasant feelings, but sometimes unpleasant feelings with SN may be even worse, so it's hard to tell definitely which method would imply less or more suffering. In all other aspects SN is just worse or not better than these two methods. It may only seriously compete with hanging which may be traumatic and overly painful.