Yes, I know they are different. I understand the spin can be related to cutting. But I also know that the horse who is cutting a cow is going to move his feet in whatever manner he needs to go whichever direction as fast as he can. While he may do
I merely stated I don’t understand why the show ring requires such a planted inside foot, when that is not natural to the horse. It’s not something they would do on their own beyond a single instance of them heaving their front end over and out of the way of someone or something.
And all the western events (barrels, roping, gaming, western pleasure even) are based off the requirements for a good ranch horse. One that is fast, one that is catty and can turn on a dime, one that has gaits that would be easy to ride for hours while driving cattle. Whole different world, totally different movements needed.
And most if not all of those discplines have bastardized some part of the useful movement of the horse to suit man-made aethetics. There is zero similarity between today’s WP or HUS ring, and a horse who is actually a pleasure to ride and can go all day on a working ranch.
The inside hind leg is whichever direction the horse is moving, so if the horse is turning right, the RH is the inside leg.
I have seen horses who have learned to stick the inside hind but it is not technically correct because you want the foot that is moving to be crossing in front of the planted foot (=forward motion). Planting the inside foot typically results in backward motion (outside foot stepping back and behind).
Except I listed different sources for what is desired in the show ring, which is to plant/stick the inside foot. For SURE it would get faulted on a SMS horse if they picked up that inside hind. there’s some leniency in a reining spin, but it needs to be clear the horse is working hard to not lift it off the ground. It’s going to move, it can’t not move. But the goal is to not have it lifted. Every video of “good” Pivots show that inside hind planted, with the outside hind walking around it.