Think for the future Don, and that is video.
There are not that many left that "need" it written, so then you are left with do you want to do it twice, video and written.
I am 99.9999.... % sure that if you take the time to explain in the video, even the "written guys" will understand it.
When you take the effort to do such a job, where will you get most customer from among them, what time are we in, for sure the written time is near historical nowadays, "everything" is on youtube or similar.
And also, in a written tutorial, at least i will forget the beginning when you come to the end of a point as there may be a lot of stuff you going thrue before you get there, in a video, they can see, and listen at the same time, in other words double effect = more easy to learn.
Think a bit over how we learn to read, we dont learn how the character is like, we learn how the Picture of a character is like, and then our brain will recognize it very quick, as our brain is build for that and will know that Picture and know the meaning of it after a short time, so then what is a video ?, a lot of Picture correct put together.
If it go to quick for someone, there is a pause button, they even can go a little bit back very easy if they need to recall anything.
I recomend everyone that look on a video for Learning something, see the full video first, then replay it and try to figure out what happens after they become a bit familiar with it.
Only one thing, as i read on the forum, some People have not a stabile net, so offer a download version maybe is an idea, not only at YouTube.