I wouldn't say it's unrealistic I think methods like night night and partial hanging work because they block the arteries blood flow to the brain but this is my chosen method and I attempted with this method in the past, the only thing I would say is that your anatomy is very different in person than in pictures and I'm personally trying to be more prepared to locate the artery itself next time, it can be very difficult to locate. I'm trying to study up a lot more before next attempt. But I don't know, maybe i'm wrong just thought I'd offer my thoughts from experience, it's not easy but do-able. I also used medical scalpels and vodka, if that helps.