He' s always done this, and no one has been able to explain why. No matter if he's standing, walking, or trotting he takes this hop when he speeds up to the next gait. It's more of a straight up then it is forward, but he still get's some distance. It's looks like he's going to skip. He throws his head up and his front feet come off the ground (not much, but they still come off). I'm 100% positive he's not rearing up because he does it when he's just in his pen messing around, and it doesn't look like that. When I lunge him today I'll try to get a video. Does anyone have an idea what this is and how I can stop it?