Ok here is the deal... When riding into the corner, you should be ready in your body position already, before the corner, to not disturb the stability of the bike. After entering the corner your body position does not have to do with being forward or back on the seat because we are all different sizes. So, just as the other css student has said, your knee should be in the tank. But more so then that, you should be able to hold onto the bike with your outside leg, with your knee in the tank and a good grip with your toe on the peg you should almost be able to let go of you hands and take your inside leg off, when on the kickstand. This is a good trick, sit on the bike on the kickstand, get a good knee in the gusset of the tank and a good grip on the peg. Get your torso low, where all the weight in your body is, and try to put as little weight on your inside leg as possible. That is the position you should be in until you start to pick the bike back up.
