I agree with Billy Ray, the Vertigo out of box is very strong. I personally own two Vertigo's, one is a 3.5 pin with the pin just above the bridge with the RAD swung out 1" right of thumb and polished and with this ball with this drilling and finish combonation it is very agressive. On the other hand my other Vertigo has a short pin of 1.5" with it located just below the ring finger and the RAD 1.5" right of the thumb (box condition), this ball has the most overall hook in my current arsenal(see profile) and hasn't seen much action on THS.
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Pat Patterson