According to Srixon, the ZXi7, which is a single-piece forged iron, is 7 percent softer than the ZX7 MkII iron it replaces, while the faces of the ZXi5 and ZXiU are 14 percent softer.
It starts with PXG’s loft sleeve, which allows the mini driver, which comes stock at 13 degrees of loft, to play anywhere from 11.5 to 13.5 degrees and a variety of lie angles. But where the ...