Join Date: Apr 2008
Location: Where gravity is 9.81m/s^2
First thing is to make sure you are asking correctly. I'm not saying you're not! I just wanted to suggest that.
Also, it seems like the horse is completely ignoring you, doing things he wants instead. When he canters and you didn't ask him, stop him. I personally love the one-rein stop as I'm sure I said. Get him to trot consistently then ask him to canter consistently. I think it is good to have a horse that is responsive to the reins at all gaits as well.
Also, I had the bad habit of picking up the canter at a certain spot. Not a good idea. Mix it up so the horse won't anticipate, like others have suggested. Hope he gets better.