I recently reviewed the Sti2 7 iron on my YouTube channel (https://youtu.be/PnjrJtqo9j4) and thought I would post a summary here. I’ll start with the end: I am very impressed! The club is a great blend of the best features of the Sti and Sti OS. While I believe the Sti was a bigger seller for the Golfworks (to be fair, it was around longer than the OS), I fit more people with the OS. The head shape, sole width and graphics were more appealing, I think.
The Sti2 retains the undercut cavity, head shape, and modern graphics from the OS. But it still has a subtle C-dimension (a notch where the hosel meets the head) and the tapered sole width of the Sti. Golfworks has added a beveled sole for better turf interaction, which is going to appeal to a wide range of players.
The lofts are modern but not overly strong (32 degrees on the 7 iron). This creates a more even gaping across the irons, and lends itself to a 52, 56, and 60 degree wedge progression. The longer irons retain some loft and should be easier to hit compared to the OS line.
Since I started at the end, I’ll finish with the beginning…these irons look MUCH better in person than in print. The back features 3 contrasting finishes (polished chrome framed by a matte finish on the cavity, and a brushed look to the rest of the back) and nice coloring (the copper accents look great in person). Give them a try - well suited to mid-high handcappers!