As far as I know, these race machines are basically dual radius, or variably increasing radius, which can be approximated by a dual radius. You may be thinking of the Coiler VSR which is tri-radius. NSR = dual.
Thanks. Ranking them would be far too subjective and dependent on individual needs. There is something here for every advanced/expert carver.
Primarily I wanted to see how the North American manufacturers stacked up against *a* World Cup board. I would have gladly included an SG, but doing an across-the-board review wasn't really the point. Then I'd have to get into Black Pearl, Oxess, Virus, and everything else. The Kessler was the WC representative here. Subtle differences aside, I'll assume SGs and Kesslers are effectively equivalent given their record in WC.
Fin actually met Sigi at an FIS race in Colorado and told him about the review. He was glad to hear about it and wanted to send a board, but he simply didn't have any he could sacrifice.