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 ...

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 ...

In 2018, Ping launched its line of Sigma 2 putters that offer a way to change length with the turn of a dial. The feature allows for golfers to adjust length between 32 and 36 inches, helping golfers ...

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 ...