I got to try both balls today on a sport pattern. I started out my first  game with my OOB Brunswick Massive Damage and a Lane #1 Gold Nugget  (PK17 cover at 800 grit +  secret sauce) just to get a feel for the lane and neither  ball could handle the oil. The Nexus solid, however, cut through the oil  with ease and was incredibly strong! I can see why everyone is  impressed with this ball. It read the mids so well and had great carry.  For a stroker like me this ball is all I would need for heavy oil. It kicks butt.
 
 I used the solid for two games and watched this guy next to me killing it with the pearl.  He was a cranker and was making it go wall-to-wall, strike after strike.  I've never seen a Brunswick ball move like that.  In fact, I haven't seen a lot of balls move like that.

 

So I was excited to try the pearl. I ended up  moving 8 boards right on the approach and jumping from the third arrow  to the second to get a good line to the pocket. But in the end I was not impressed with  the pearl. It didn't have the carry of the solid for me and just sort of limped down the lane.  I just couldn't make it move.

 

So I ended up moving forward on the approach and three boards left and  watched the Massive Damage destroy the rack. What an underrated ball.
 
 I highly recommend the Nexus solid and if you have the hand for it, the pearl too!