Tail-wringing--possible to feel?

[Toccet02]

I just saw the first at Aqueduct where the two was really doing this out of the gate. Nevertheless, she won.
I was just wondering if the jockey can feel it? Theoretically the muscles back there might be felt as they are used...so, possible? Or excercise riders at slower speeds?

[Kari]

Can't speak for the jockeys, but I could feel it when my bullheaded old alpha QH mare would do it. I could talk her into anything at home, but getting on her at a show was asking for a fight. There was a very distinctive back-end twitch that I could feel in addition to the mounting tension in her mouth and shoulders. That twitch meant that I had better two-hand that Tom Thumb snaffle and get her into figure eights NOW, or else we were going back to the barn. The first time I missed that cue, we went through the fence of the warmup arena at the 4H fairgrounds.