AP1 irons are more forgiving because of their efficient, high MOI design that utilizes a high density tungsten sole weight inside the lower cavity of the stainless steel body. The use of pure tungsten (17 g/cc) allows for a more optimum weight distribution, increasing MOI while maintaining the blade length. This translates to more consistent ball speed over a wider area of the clubface for improved distance control with the same workability as prior generation AP1 irons.
"For me it's all about performance, what are my misses like?" says Curtis, who ranked first in Greens in Regulation at the Valero Texas Open. "The AP1s are more forgiving so they give you a little more room for error."
Appearance improvements to the AP1 irons include a new beveled topline and smoother hosel blend for a traditional shape with a more precise address profile. The AP1 irons also feature progressive blade lengths throughout the set for a confidence-inspiring look in the longer irons and increased playability in the shorter irons.

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