Aim at 3 quarters of the 7 ball on it's left side, with low right (inside), and hit it with a soft stroke. If you miss the carom, the cueball ends up down table near the rail, and the 7 winds up on the top rail safe. This is a great shot to practice, and the key to this shot is all speed. Even though you are aiming low right, you are not trying to draw the ball, so don't hit it too hard, not even a medium stroke. Just imagine a double kiss where you hit it just soft enough for the cueball to float down table and pocket the 9. Try it! It's a great shot.