Not to sound rude, or a smarty, but check with your pro shop operator. I know there are people on here that know there stuff, but without seeing you bowl, they wont know exactly which one you need, or even how to drill. If I had to guess, the pearl will work better for you because the pearl will help get the down the lane. Like I said it would depend on your pro shop operator to determine which one you need.
After watching George Lambert (from the Masters) tonight throw his Pearl, I absolutly love the way it rolls. Long, and just the right amount of hook! It defenitly goes longer and has more backend, where the solid will read early and just continues to hook.