Aimed at low-handicappers and pros the 919 Tour model replaces the 900 Tour a.k.a. the Brooks Koepka model and features an improved shape with a bit thinner topline that the many Tour players who game the iron prefer. A new more durable Pearl Brush finish reduces glare while providing a bit more refined look than the previous matte finish.
The newest version also features a forged construction similar to the Z 585 and Z 785 irons but is built with a hollow club head and high-strength face insert that allows the club to behave more like a wood. What this means is higher launch higher flight and more distance for a wide variety of players.
Though Srixon has long been known for impressive forged irons the woods were always high-quality products that were often overlooked. With the new iteration including most notably the Z 785 driver things are about to change in a big way as new technologies and materials have brought ball speeds (and distance) up to the level of the longer drivers on the market.