Keep your upper left bicep on your chest in the initial stages of your backswing. They should remain together until the right arm begins to fold. You want to avoid lifting the club from your deltoid (should sockets) as you begin your backswing. When you lift the club from your delts your hands will move away from your body and above the shaft angle plane. You will be forced to use a reverse shift to put the club back on plane. There is no end to a loop (one continuous motion); very difficult to time, especially when under the gun. Just be thankful, however, that you have this type of loop and not the over-the-top variety. It is easier to correct. Practice in front of a mirror. From a down the line view, work the club backwards, upwards and INWARDS while maintaining the proper left bicep and chest feel. Hands will feel that they arm moving in a small circle not a straight line.
Downswing feels: Maitain extensor action with the right arm remaining bent at a right angle while at start down your right should drives through the ball. If you arms are dropping or over-accelerating, you need to work on storing and delivering. Read 6-C-2-A, last paragraph. Good Luck.