What we say...
Tech: A lightweight, strong Exo-Cage frame inside the head eliminates inefficient weight, meaning Callaway’s engineers had more weight to position to influence forgiveness.
We say: The construction method of this latest model is nothing like the very successful originals. The OS’s new cage head has parts welded onto a very lightweight frame to create a seriously forgiving iron, unlike others. Simon was a big fan of the very tidy shape and chunky top edge, and from a loft 1.5° weaker than our longest iron the OS posted a ball speed 3mph faster and carried shots 7 yards further than our test average. Impressive.
Verdict: If your game needs full-on forgiveness this is a great option. It’s head construction means weight is removed from inefficient areas and positioned to make a difference. How that forgiveness is rolled together into a design that’s much more appealing than the original is impressive and opens up the OS to a very wide audience.