Back in the early 90's, a drill pattern emerged around here and became very popular called "block" weighting.

  You took a two piece, pin-in ball,  Put the pin/cg on the grip midline 3 3/8 inch from the grip center and a weighthole 3 3/8 past that.  Made the ball very smooth and continuous.

  Last week, I tried my old urethane COBRA drilled this way.  I loved the reaction I had, just not enough pop on the backends to carry the corners out consistently. I was wondering, if I took a good ball of today ( a particle or solid reactive ) with a pin-in and drilled it this way, could I expect to get the same reaction type with just more backends reaction, or would it be something TOTALLY different?
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"The difference between stupidity and genius is that genius has its limits."
Albert Einstein

I don't know either, but a couple of thoughts.  The reaction would depend on your PAP location.  The pin to PAP distance for the proposed layout could be anywhere from 0 to about 3".  At 0 (spinner track, PAP located 3 3/8" straight over), the core would be essentially taken out of play tending to make the ball fairly smooth.  At 3" (PAP location would be something like 5 3/4" over and 1 1/2" up), you would get almost 90% of the flare potential.  And the location of the X-hole in relation to the PAP would vary similarly.  Check the pin to PAP for your PAP location and you'll have some idea of what the layout would do.  --  JohnP

For the most part a leverage weight drilling.