Well I’m not sure. I mean those vintage things would confuse me due to trying to guess how much to cut.
My method means you’re holding all the tension in the string with your forefinger so you don’t get that thing where the string unwraps itself from the capstan or becomes very fiddly there because there’s no pull on it…
I get about 3 or 4 loops onto the capstan on my electric I suppose but fewer on my acoustic. I guess scale length is a factor here and so forth.