I have both the solid and pearl sonic x. Both are drilled similar, label with pin abover ring finger. The pearl is definitely longer and flips much more down the lane. The solid picks up in the midlane a little more and doesn't make a huge move on the backends. Overall, both balls are great they give you a little different look depending on what condition you are on. The solid sonic x may be the ball for you as long as you have enough head oil, it won't turn the corner as hard as your pearl.