Since she came to me, I have been riding her in a 4 knot training rope halter and bumping her to keep her from pulling her head away from me. She had stopped pulling on me almost completely so I traded out the halter for a rope nose hackamore. She'e been doing great.
My problem lies in that her owners WANT to ride her in a snaffle bit. So I put her back in the bit and she almost immediately started testing the waters. Within an hour ride, she was back to grabbing the bit and ripping the reins out of my hands. The only way I can keep my rein is by bracing my legs and one hand on the horn and pulling with my whole body, did that ONE time... one time too many....She just managed to hurt my shoulder and keep her head pulled against me in a strength contest, obviously she won. So after I let her have her head, I bumped the bit, hard, until she brought her head back up to me and started walking again. I don't want to pull on her mouth that hard. That's not what the owners want, they want her to be soft and responsive (obviously). Anyway, We make it about 15ft and she does it again. I have tried O-ring snaffle, jr cowhorse sweet iron snaffle, tom thumb... she grabs them all. She wont take a solid bit, like a grazing bit or a ported bit, she freaks out with a solid piece of metal in her mouth and her owners ask me not to use that.
Is there a bit suggestions for a horse that grabs hold and pulls??