@@lgb0250 will be sure to add it to the list. Have you read our book The Bad Lie? It covers the entire Vertical Line Swing System and can be found on Amazon.
I have a senior golfer friend who spins out. One reason is he rocks back on the outside his back foot raising the front of his back foot and then can’t get his weight shifted back to his front foot. It’s a reverse weight shift. From there he does just what you described. Any suggestions to keep from rocking back on the outside of his back foot?