Here is what you need to do.
Get the ball to rotate with this type of axis. It takes advantage of Laminar flow and will cause the ball to break arm side and down. The grip is not the same for everyone. It all depends on your release. Experiment until you get consistent spin (it’s a feel thing). You may have to hold the ball with a one seam grip, somewhat across a seam, depending on how you release it.
Kluber’s two seam: