I have a 11 year old saddle horse that I would like to start driving again, as 2 year old used a ring snaffle and just dragged a old truck tire around. Since then he just became a saddle horse, I ride wild a medium curb bit with 5 inch shanks. Thinking of using Livermore or military elbow bit with a port. What are some opinions from out there. I'm also going to use a bridle without blinders, sense he's used to pulling stuff from the saddle and like to look back at what he's pulling. If the picture is here it's the bit I ride with