GA-1

The Gauge Design GA-1 line, as we hold it, is a single release: the GA-1 GSS Pro Series. There is no earlier or later version on record, no prior GA-1 to compare it against and no successor that followed it. The line's arc, at least as far as our files carry it, is a single point rather than a progression.

What we do hold on that one release comes from gaugedesigngolfshop.com, as reported by the publication rather than confirmed by us. The maker's own site describes the GA-1 GSS Pro Series in German stainless steel, with a finish given at different points as satin and, elsewhere, as a polished satin finish. Those two descriptions sit side by side in the record without resolution, so we note both rather than choosing one for the reader.

Beyond the material and finish, the same source lists the GA-1 GSS Pro Series at a 360 gram head weight, 72 degrees of lie, and 3.5 degrees of loft, along with five further rows of specification we've omitted here for length. Taken together, this is a putter documented in some detail on the maker's own retail page, but it stands alone in our record as the entirety of the GA-1 line to date.