Go to the MoRich website, look in Mo's Corner for his dual angle layout method. Skip down to near the end, where he discusses how to apply the technique to various bowler's characteristics - unless you want to read all the rest, which talks about how to actually lay the ball out for drilling. Honestly evaluate your style and see what angles and pin to PAP you end up with. I did this on a Red Zone about a year ago. The layout it suggested was something I would probably have never come up with on my own, 5 1/2" pin to PAP with the pin under the MF. I put it on the ball and have loved it ever since, until the lanes get too dried out to use it. -- JohnP