Pro shop is a great place to start, I did just get the Mastermind Genius, I love throwing Brunswick balls, I also had a Hellraiser Split around from thumb to thumb.
Back to the Genius, for me its the most hooking (move across the most boards) ball in my arsenal, but I am a 15mph, low revs like around 300 or lower, I had to have it sanded with 1500 to remove the factory polish to get the backend movement I wanted and it work great tonight on a THS, my pin is above ring finger with cg out to the right with counterbalance hole on my PAP, and I have my Purple Taboo (bought at same time) drilled identically to the Genius, and they perform totally different.
I also see a lot of the Storms IQ Fusions (got this one for my wife, we will see how it move for her tomorrow), both the Fusion and Genius are hybrid balls (pearl mixture), now a full pearl should give you the most length before flip and more drive and power into the pocket but not move as many boards, and for this I use my Purple Taboo from Hammer. The Purple Taboo (for me) hits harder cause is breaks later and has more drive into the pocket, the Genius moves more board and has a softer hit but cover more of the lane.
But if you ask any else, they will tell you a completely different story. I go to http://www.bowlingball.com watch the videos of the different balls but pick one of the bowlers that looks most like you (I like watch Curley, he's closest to my game) and I compare how the different balls work, that what made me pick Genius (besides being a Brunswick ball).
If your Pro Shop can watch you throw a few balls and see what your play style is, then I listen to them. show them your tracking on your current balls also.
Hope that helps: Jerry
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