I was riding my 14.1h pony today and i noticed that my rising trot doesnt seem right, as i sat it felt like i was sitting hard in the saddle, my stirrups were a bit short but i think i may be a little unbalanced on him. i always worry im a bit big on him, hes medium weight and im 5.5 and 9.5st. Any tips on becoming a more balanced rider and do u think its his size that causing this?