Posted February 26, 200519 yr Can anyone tell me the difference between the Nippon NS 950 used in many import clubs vs. the NS 990 used in Callaway's Big Bertha Fusion irons? I can't find the NS 990 on Nippon's website. Thanks, Bert-B
February 27, 200519 yr I think weight is the only difference between the NS 950 and the NS 990. The 950 starts at 95 grams whereas the 990 is (you guessed it) 99 grams. Hope that helps.
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