You didn't give us near enough information. You might not know everything, but tell us what you can. Brunswick made a ton of Zone's, try to find out which one. A dull proactive and a shiny pearlized reactive are two totally different animals. We also need some information about you and the lanes. What is your rev rate (at least high/medium/low), PAP, ball speed, do you throw on wood or synthetic, how much oil do they put down, what is the pattern, .... There are tons of variables. If the guy at the proshop is any good, he'll be able to tell what you need by watching you throw a few balls. Hopefully you have something else that fits you that isn't cracked. If all else fails, a label leverage is a safe option. If your proshop can't find your PAP (and you can't go anywhere else), have him put the pin over and a little right of your ring finger and the CG near the center of your grip.
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