Hi! I am currently dealing with a 10yo quarter horse gelding that tends to buck in the arena and pasture. I can trail ride him around town with friends and he’s pretty much perfect. I recently found out from the girl on his coggins that the owner before her cowboyed him and he is also green broke. When he bucks you off, he keeps bucking like it’s a game and has never come after the person he bucked off. I ride him in a hackamore because he was fighting me on bits but now thinking that was because he is not as broke as I originally thought. I have had my saddle checked and he does not seem to be having any soreness or anything of that nature. He is very sweet and loving outside of riding and I can do anything else with him. He doesn’t spook easy and is not dangerous in any way. Any suggestions on how to fix this?