If you're leaned over enough in a turn like that, you should be planting your outside foot for stability. Imagine standing on the foot on the outside of the turn. It pushes more of your weight down to the tires such that you can more effectively rail the turns -- it also has the nice side effect of making sure your inside pedal isn't in a position to strike the ground and cause a horrible crash. Get in the habit of positioning that outside foot such.