The Sigma 2 putter series from Ping ($215-$235 MSRP) is available in 10 options, all of which come with two new innovations — an adjustable-shaft-length technology that allows for simple custom tuning ...

The new Ping Sigma 2 putter family solves two problems in putter design. One is more of a recent issue, while the other is probably as old as putters themselves. And yet it’s the latter that not only ...

As with many things in R&D, you build on the partial success and failures of things in the past. We had an adjustable-length mechanism in that first version—a fairly simple clamp—that did an awful lot ...

For the best players in the world, the way a putter feels at impact can determine the longevity of a flat stick. It's part of the reason why Jordan Spieth, Tiger Woods and Brandt Snedeker, just to ...