Re: Problem student!!
I wonder if some brainstorming is in order. It seems like there must be some way you can get something more positive out of your training experiences with this guy. If he tends to jump before you get kuzushi, maybe you could work on other stuff? Your entrance, leading, footwork, precise positioning, something else? Maybe even something you don't always focus on as much?
I know when i'm training with someone who's making me frustrated, it often changes my experience enormously if I can force my brain into 'interesting puzzle' mode and start the interaction with the expectation that things _aren't_ going to go according to plan. Sometimes I even end up finding I start to quite like traning with that person and look forward to it, but in any case it helps me get less frustrated.