4 pin usually is caused by a high pocket hit. If you get to a point of only the 4 pin or 10 pin is getting left, either move right and throw with a bit more speed, or move left and swing it more. The angle you are creating is wrong.
Also, i dont know your style, but i stroke straight up the back. My black widow pearl if i stay behind the ball, it will carry, but if i come around the side any, everything else the same, the more side rotation will guarantee me a 10 pin. Other balls do the same for me, but not as much as th bwp