My dad does ride her some. She hates the bit. Backs up way more than she goes forward. She does better in the woods, even dense woods (point in the direction you want to go, if she doesn't see a path she'll make one). When she's out in the open, she locks up and stops listening all together.
She is the underdog of the herd. I also have a 7 yr. Old Belgian x QH mare; she's more like a pony (only about 13, maybe 13.2 hands), but she's built like a tank and has always been the boss. We recently adopted a 10 yr. Old Tennessee Walker mare (about 15 hh), she is well tempered, but is also dominant over Sedona. We also adopted the TWH's 8 month old filly. Due to limited shelter Sedona and Selah (TWH) share the main pen. Kiah (belgian x QH) is in our old fencing. Tabitha (the filly) is in an adjacent pen to her mother, Selah, and Sedona. When we have our barn built they will all be put together.
Any advice concerning Sedona and her attitude problem is welcome. Could it be a health problem or is it just behavioral? I recently changed her diet. She is now getting about 12 pounds of hay and 7 pounds of grain daily (two seperate feedings). She is a little ribby, trying to fix that (She's always been. It's hard to put weight on her and keep it on).