I have been using this ball for 5 weeks including the Mixed National at the bowling Stadium. I had it drilled pin at 12:00(3 3/8 from PAP), cg 3 3/8 from PAP, and hot spot in strong position. The ball gets through the heads very clean with a nice backend reaction. Sometimes too much backend leaving 9 pins. I would recommend this ball just behind my High Rev 3D!