The pro pin and pro CG are actually still considered 1st quality.. they just fall out of the "standard 1st quality standards" the blems dont come until after the 6.5 inch..
STORM "Pro-Pin"™ Technology
PRO-PIN: A Pro-Pin is where the Pin distance from the CG is 5 -" 6 ½” out. Although still categorized as a first quality ball it has limited drill options (see our Pro-Pin Drilling Options) that requires a certain type of bowler. Please consult your pro shop professional before purchasing one of these balls. Anything more than 6 ½” would be termed an X-Blem (second).
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