My horse everytime I ride him after about an hr or so, maybe an hr and between 10-15 mins, he starts biting on the bit and wanting to lower his head almost to the ground. He has always did this and I'm thinking he just wants to find an excuse for me to take him home, but 9 months after having him and him knowing I'm not giving in to him, he still does it. Just wondering what else if anything might be wrong. I looked in his mouth yesterday after riding to see if I saw any signs that the bit might be hurting him or something. When I had his feet done last time the guy said his teeth werent perfect but that as far as riding and bits he should be fine. The bit I use right now is the one with shanks, almost looks like a tom thumb but it has the shanks on each side, shanks then like a D. Almost a D with the shank being on the straight side of the D.