Nathan,
I've been instructing for about 9 years now and I've had a few students that have the same exact problem you are describing. Here's what I did to correct the problems. First of all, do exactly what you thought about doing, keep him off of the simulator. I've preached about the evils of simulators in here more than once, and this is exactly what I was talking about. If a simulator is used incorrectly it actually does more harm than good. The student is going home and doing what he "thinks" is right and in fact is making bad habits worse.

Now to correct the problem when you have him in the air, talk him through the turns. So it would sound something like this. "Ok, we're going to do a right turn now. Start adding in right aileron. More right , more right, more right, more right. Now hold there. Hold, hold, hold, hold, hold. Bring the stick back to center. A little left to level out. Now back to center." Trust me here, he'll pick up quickly on what he needs to do just so he doesn't have to listen to your voice. I know that sounds harsh, but trust me here, this technique works and it works quickly.

I actually picked up this one when I was watching the series "A day in the Life" on The Military Channel, it's about the Blue Angels. When they fly their routine the flight leader is ALWAYS talking the group through every maneuver, and that is how the base EVERYTHING they do in the air on. And when you watch them fly in close formation you realize that is works because the other pilots aren't looking out of the front of the cockpit. They have their eyes glued on the wingtip of the plane next to them and they are relying on the verbal instructions from the flight leader to guide them through the maneuver. So when I saw this I though to myself that this would be the perfect way to help my students that are having trouble when training. And it's worked great for me.

Hope this helps


Ken