Hey there. I'm really struggling to find any help with this so anything anyone can offer would be very appreciated. I'm 5'7 (maybe even 5'8) and 11 stone 6 (loosing weight). I currently ride school horses as my own horses are too small and retired. But I do not know how big the school horses are. Sometimes I ride a cob which is roughly 15hh and sometimes they put me on this lad that's roughly 16hh. However, I've also ridden a Clydesdale and been told that I suit it? Do these horse heights seem about right?