Or try the other side...All good points above. But if the rack is tight, and still leaking occurs, then a guy should break closer to the center of the headstring, which will cause a more glancing blow to the rack. If that doesn't work, then aim for the 2nd-3rd, or even 3rd-4th gap.
You're hitting too much of the second ball.Any thoughts on what makes the corner ball leak out on break?