I drilled the Pearl with the box layout 5 x 3, pin buffer 2" to complement a Cell solid with the same layout. On the 39' house shot, the pearl is clean through the front, has great midlane read, and reacts hard off the break point. I found the pearl to "slide" rather than "squirt"(like other pearls) off the oil when I missed inside a little.
Whereas the Cell solid may have been too strong for medium to short patterns, the Pearl fits right in to give the length needed plus retain the strong hit of the solid. Bowlers with slower ball speeds should be able to use the Pearl instead of the solid with the correct layout for their game.
If you have a Cell with a layout you like, drill a Pearl with the same layout. When the solid starts to burn up, go to the Pearl.
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Senor RotoGrip