I did really appreciate her keeping her head when she did the bit thing... now if she would stop trying to play with the shanks in the first place ;~)
We raised the hackamore a little higher on her nose, so now it won’t pass by her chin and she can’t grab it.
Bob will always do that if I put him in a bit with swiveling shanks. He would take the shanks between his teeth and then just keep on going when I pulled on the reins. I had to switch him to a solid port, solid shank bit to keep him from being able to do it. He and Cyn sound a whole lot alike. They're both way too smart and have too much time on their hands to dream up trouble.