So I have started gaming with my horse. I first used a snaffle, but he was not very responsive, so I switched to a kimberwick ( I have no other bits).He is fine unless he is grumpy, which happens quite a bit, then he puts his head down and bucks. I try to pull his head up but it doesn't work. I don't want a harsher bit, but one that encourages him to keep his head up.
Does anyone have any recommendations?