That kinda sounds like what our old standardbred mare used to do......with her it was called a pace....as a much much younger horse she was raced...but if you could get her into to that pace while riding...she was smoother then our walking horse....and man you want to talk about covering some ground! Her and ayoung friend used to get such a kick outa whupping everything around in it....it would be so funny and such a great experience for them.