The note on how the method focuses on "everything other than sight" is something of a product of its time - most imposition discussion I saw then was focused primarily on sight, with the other senses deemed less important. Thus, I commented that, unlike most things the reader may associate with imposition, I was actually going to put the spotlight on the rest of the senses, such as touch and smell.
I wouldn't say the method requires visual imposition, not at all. There's no good reason it can't even be done closed-eyed, it's all up to the forcer. As long as you have some idea what the tulpa's form is like. Open-eyed is just the way I did it.
I also apologise for the admittedly less than spectacular wording and formatting. It was a bit more of a linear thought on how I did it with QB than a professional paper. Luckily, I feel it is a relatively simple idea to get across.
I'm grateful to all of you for this approval, which I honestly didn't know was happening at the time. It is a pleasant surprise.