ccrider -- I was hoping someone else would respond to your question, because I've never actually layed out a Rico. But I think I know how to do it, and will post that and invite others, more experienced with the layout, to make comments and corrections.
First I would determine where I want the balance hole to be located. As an example, let's use a PAP located 5 1/4" across and 1" up. For an asymmetric ball the MB should be located 6 3/4" from the pin, and that's where you want the balance hole. For a symmetrical ball, first locate the true cg on your dodo scale. The balance hole will be located 6 3/4" from the pin on the line from the pin through the cg. Now, on either ball, draw the line from the balance hole location through the pin. Then draw a line 45* from that line, also through the pin. The PAP will be located on that 45* line. I see two ways to get the exact PAP location. One way - on another ball, draw in the centerline and midline for the grip to be used, locate the PAP on the ball and measure the distance from grip center. Then go to your Rico ball and measure that distance from the pin on the 45* line you drew, that will be the PAP location. The other way - Draw an arc, radius of the horizontal PAP component (5 1/4" in our case), and centered on the pin (which is also grip center). Use your ProSect to locate the point on the 45* line that is the vertical PAP component (1" in our case) from a point tangent to the arc and perpendicular to the 45* line. That will be your PAP location. When you have the PAP located, proceed as usual with the layout. When you drill the balance hole, start out with a 3 1/2" deep hole with a diameter that will bring the statics to legal. Throw the ball and adjust the diameter if so desired to get a better reaction.
Hope this makes sense. -- JohnP