I'm a 59 yr old right hander. I have medium speed with 255 rpm rev rate. I prefer to use similar layouts in my equipment. I drilled the Phaze pin up 50x4 3/4x35.with this layout it will need a weigh hole. I like the ball because it comes of the spot very strong. the phase reads the lane even if you do not put a lot of hand in it. I have shoot (5) 279s and 770 set with this ball after having it for 3 weeks. This is the ball I start with every night. The phase is excellent for lower rev bowlers that are looking for a consistently heavy rolling ball
