Hey guys! I've been riding a 8 year old horse that has only been trail ridden, and the previous owner ONLY rides him in either draw reins or a martingale. I rode him without any of that and he is completely fine, he just doesn't know how to balance himself. What are some tips for helping to get this guy balanced? I've been working on spiraling in and out, serpentines and lots of transitions. Any advice would be awesome! Thanks!