The difference is not so much that one is a pearl and the other is a solid, it's more one is dull(er) and the other is shiny. With todays technology there is less (with the same surface) difference between the 2. It is insignificant.
So, I would feel or think that you would see more length due to the polish and possibly a sharper response at the back of the pattern, but it is PK-18 with a smoother overall response cover, so it would more than likely be length with a similar move to the solid.
What I would consider is possibly a slightly different layout to compliment the solid, in the pearl. Since it is shiny, the ball will get down the lane easier, so instead of 5 1/2 maybe go with 5" and either a similar hole or even go with a P2 hole.
The views and opinions expressed by myself are solely those of mine and NO one else, nor are they affiliated with anyone else.