What I am seeing is folks tapping for 10 or 15 minutes and the horse does not lower its head or change its posture or attitude.
I think that of you were a halfway alert trainer, you could train a horse that bopping was a cue to lower the head. Then your endotapping would look like it made the horse relax. But actually it is a pressure release response, horse learns that if he lowers his head the annoyance stops.
You could of course teach lowering the head to any cue. You don’t need the endotapping stick.
The people I see using this are committed recreational riders in a self board barn who school and train within their limits, trail ride, and do ground work. Our interests overlap quite a bit. I quietly disagree with some of what they do, but then I quietly disagree with everyone on something they do. They aren’t total flakes or nonriders.
I think the endotapping in the video and in clinics is being presented as a surefire technique that automatically leads to relaxation and a dropped head because it has a particular physiological effect on a horse. But I think that if you are doing it for 10 minutes with no effect, it doesn’t work like that.
It’s pretty easy to see when massage, or grooming, or scratching the neck, makes a horse relax and go all soft eyed and floppy. It usually happens pretty quickly if it’s going to happen.
Anyhow I didn’t realize that endotapping was so rare. I thought for sure I’d get half a dozen responses from people explaining how they use it every day, and I’d need to walk back my snark a bit.
That no one has even been exposed to it makes me think it actually isn’t effective enough to be adopted even in groundwork world generally.