What are some things I can do to stop my gelding from rushing fences? He is fine from a trot but as soon as we start cantering fences he's like "let's go let's go let's go..ooh we're jumping?!" As of right now I half halt, sit deep, breathe, think slow, tell him easy and support with my lower leg. But is there any exercises I can do? I have tried ground poles and it works while they're down but as soon as they are gone it's back to the same thing. And going to a harsher bit is NOT an option.