My Specs: LH / 525RPM / 18-19MPH / PAP - 4-5/8" over x 1" up
Layout: 60x4-3/4x40
This ball is quickly becoming another favorite for me. In comparison to the Bonus Solid (60x5x60), the Pearl is similar in length but offers more down lane motion (roughly 3&1 difference). IMO, the Bonus line is up there with the best in terms of what you'd expect out of a benchmark symmetric reaction. Radical preaches continuation as a mainstay of their designs, and it's proven with every ball they release.
As mentioned in my review of the Bonus Solid, these two are a match made in heaven when looking to tackle those medium patterns!