At recent riding clinic it was brought to my attention that I do a double bounce while posting the trot. I've since been trying to fix it and can't seem to shake it. I ride mostly lower level dressage and start a lot of young horses, so I'm always conscious of trying to sit lightly on their young backs which may be why it originated. I've been trying to sit 'harder' but it doesn't seem to improve it. I haven't tried working without stirrups yet (the young horse thing is a bit of a deterrent ha ha), but will try it in the coming days. Any hints or exercises would be appreciated!