We have a pony that has been out on lease for a few years and he is presently on trial at Riding for the Disabled. I had planned to give up riding but am realising I would like something to hop on every now and then. If he does not work out for the RDA I am thinking I could ride the pony every now and then. He is medium build and I weigh 11 stone and am 5ft 6". Do you think he will be able to carry me?