...were used to win four times on the PGA Tour during the 2018 season which validates what we have been promoting for over 20 years. We began developing the concept of Single-Length play in 1995 when we coined the term "Single Length Irons", and up until just the past few years we were the only ones in the golf industry who offered Single-Length golf clubs.
...once our research, testing, philosophy, and golf club designs had been tour proven and our concept of Single-Length play had become immensely popular world-wide a number of brands popped up to "jump on the bandwagon", using our research and golf club designs as a basis to create and offer their own lines of Single-Length irons.
Imitation is the Sincerest Form of Flattery
In the decade prior to the turn of the century our founder, David Lake, began developing, what later would become, the One Iron Golf System and the basis for Single-Length play.
David, a highly regarded professional golf club designer, had always been skeptical of the need for the standard 1/2 inch length increments between clubs within a set of conventional golf clubs.
Acting on this skepticism David began an in-depth study of the dynamics of golf clubs in relation to playability.
One Size Does Not Fit All
Early on it became apparent that the progressive incremental length increases between successive golf clubs had no affect on distance but a progressively negative affect on playability.
Simply put, the longer the golf club the harder it is to make consistent center face contact. David knew that there had to be an easier, more consistent approach to the game and the obvious but overlooked answer was that all of the golf clubs within a specific design grouping (ie: irons, fairway woods) should be built to the same club length with the same clubhead lie angle, weight, shafting, offset, bounce angle, etc.
And, extremely important, be custom fitted to the individual golfer - this is imperative for single length play.