[Closed] Any large Soma Double Cross riders?

The Soma Double Cross Disc is one of only two off-the peg framesets I can find that tick all my boxes. Anyone out there riding a large size (60+) and able to comment on stiffness? I tend to find steel road framesets suffer from shimmy at speed, and less than surgically-precise steering. The former is the greater issue. I guess there's little about the frame itself that would differentiate it stiffness-wise from anything else with the same diameter tubing, but the straight-leg unicrown fork looks like it'd be stiffer than a traditional lugged and curved steel one...