finished up a 4 day mini tour of Utah(Solitude, Powder, Alta and Snowbird) on 2009 Icelantic Pilgrims with Tyrolia Railflex plate. Worked out great in the powder. they are currently experiencing a "parade" of storms.
One minor observation-due to the curvature of the ski, the plate did not sit entirely flush on the ski on the ends despite the mounting screws being screwed in all the way. either it;s the physical shape of the ski or just the the camber.
i was a little worried about the stability of the ski but did not hurt the performance for me. If your nomads are similar in design, it;s something you might want to check out.