I would choose SN, if I could not leave home or could not find a proper isolated place, I would just drink it in my bed at late evening, while everyone is sleeping.
This probably wouldn't be a good idea.
Before and after drinking SN, a very strong SI may be activated.
You may start to panic and you will be loud.
Of course, this will wake up the household members.
There is also a high chance of vomiting.
Of course, you will be noisy when you vomit.
Also if I remember correctly, after drinking SN your breathing becomes louder.
This may trigger an alarm for your household members.
However, it depends on what kind of house you have and the layout of the rooms.
Someone doesn't necessarily have to hear something.
It's best to drink SN when no one is around.
After 1 year of research and having failed other methods, I came to the conclusion that I must choose between these 2 methods. I'm really into SN but I'm having trouble finding a place to be alone. I have seen videos of complete hanging suspensions and in all of them they seem to lose consciousness within 1-2 minutes. In addition to the Japanese suicide manual book that talks about hanging as the best method. Another method that can be effective is the tourniquet, but it activates my SI a lot. What would you choose?
There is no clear answer as to whether the SN or hanging yourself is better.
It all depends on private preferences.
Personally, I much prefer SN.
I wouldn't be able to hang myself. I wouldn't be able to convince my psyche.
Drinking a drink is much easier for me.
Of course, hanging yourself is a good method.
If everything is done right, there will be no Pain (probably).
You have to summarize both methods yourself and decide which one has more advantages.
The result may be different for everyone.