Thanks Fellen, he is only just a yearling, so a lot of growing left to do yet (I hope!). Even though he is very bum high at the moment, he still just floats across the ground when he moves. His friesian 'friend' is a little older, 19 months now, but very much a cart horse, you can hear him coming a mile away where as little Billy gets so much air and spring in his paces. Makes my heart sing, can't wait to sit on him!!