I've always dealing with people as the individual that they are, not categorizing them, especially when training my dogs or horses. After all, they're individuals too, their own kind of "people"
Since I haven't had any horse back riding lessons since I was in grade school and even then only the basics, I don't know a lot about technique and such except what I've developed on my own. And then I'm not cookie cutter. Its easier for me to respond in the moment by what comes at me then remember some technique or how to use some tool. So in other words, I analyze a situation and operate from principles. Plus handing a leadline and a whip without tripping on the whip and getting the line tangled around my ankles is more than I can handle

Its no wonder I do a lot 'at liberty'
So when I read a commentary about Yvonne Barteau's training and how they mentioned the Meyers-Briggs personality testing in conjunction with getting along better with their horses I felt vindicated. They didn't advocate giving the test to the horse, after all those guys have such a hard time with a number two pencil, but they did kinda seem to indicate that it wouldn't be such a bad idea.
It seems to me that there are a few folks who have problems with their horses and are always looking for a better bit, where to apply the crop and what bit of practice will make the horse behave. I don't believe intimidation is nearly as effective as communicating from a relationship of understanding and mutual respect. Uff, no wonder its so difficult.