While jumping a course the pony I ride gets really quick and has short, choppy strides. I try half-halts but he just doesn't listen. I also try sitting back and relaxing to try and get him to relax, it works for a few strides usually but then he just starts getting quick again. I'm going to a big show next week and I am really nervous he's going to be running around like a maniac. How can I get him to slow down if he won't listen to me? I would rather show him in jumpers, but my trainer's set on making him the perfect hunter pony. I just don't see how that's possible with him. Any ideas on getting him to slow down?