Check out the layouts that only the pros get to use. Try a Pro Pin Layout today.The new Rapid Fire, with a highly polished R2S coverstock, is a much hotter version than the original Fired Up. Combine that with Twin V symmetrical weight block and you have excellent skid through the heads, midlane traction in fresh oil, and tremendous energy through the pocket. Offering outstanding versatility for different types of players and conditions, the Rapid Fire is sure to ignite your fire within. STORM's PRO PIN technology is taking layouts and ball reaction to the extreme. Once only used on the Professional Tour for condition specific drilling's, these balls are now being made available in limited quantities to the general bowling public. Why As the requests, requirements, and styles of today's bowler changes to address new lane conditions and patterns, STORM is answering by providing and packaging these items separately from the standard first run items due to their unique nature and value.STORM PRO PIN bowling balls are All first quality STORM bowling balls Manufactured with the same high quality standards as all other STORM products Manufactured with the highest integrity Made with the same high quality materials as all other STORM products Great for specialized layouts and drilling options Potential for enhancing dynamic use of core position Meet all A.B.C., U.S.B.C. and P.B.A. regulationsSTORM PRO PIN bowling balls are first quality bowling balls with pin distances over 5 from the center of gravity and top weight between 2 and 4 ounces. Through our testing, we have found that these balls lend themselves to a variety of drilling patterns outside the range of pins less than 5 which would require an extra hole to accomplish with standard pin and top weight specifications. Based on the desired reaction, some Pro Pin drilling's may require an extra hole for balance requirements.Please visit your pro shop professional for assistance in determining the bes