Here is the way I see it.
ANY ball, regardless of being solid or pearl, is going to skid on enough oil. If there is enough oil out there to make a solid covered ball skid out, then it makes NO DIFFERENCE in that part of the lane what you throw, because neither will traction there.
Now, if you still have crisp backends with little carrydown, either one will finish, with the pearls PROBABLY having a sharper movement to them, once they exit the pattern.
If I had 40-45ft of skid, all I'm looking for is a ball that gives me the proper entry angle off the breakpoint and, if that ends up being a pearl ball, then that's what gets used. If there is a bit of carrydown, and my pearls are "squirty" on the backends, I'll go to a solid for a better/"truer" finish off the breakpoint.
It isn't ALWAYS about raw power. Sometimes, its just nice to know where the balls going so you don't end up fighting it all day.