PING
Ping was the first manufacturer to offer high-quality cast clubs using investment casting which both reduced costs, allowed better quality control for high tech features, and set the stage for manufactured fitting. Ping was also the first to offer factory fitting, via a variety of clubheads in different lies and offsets. Beginning about 1980, Ping began offering their fitting program based on a checklist of the player's physical characteristics, common problems, and distances.
The 2011 checklist at the Ping website contained approximately 100 data inputs and was part of a 5-step fitting process covering everything from driver to putter. To make custom fitting more feasible, Ping manufactures some iron clubheads with a small notch in the clubhead. The notch allows the clubhead to be bent to the required specification without the danger of breaking the clubhead as was the problem for previous models.