The short life of the FX300 has me concerned. I did some research and those with the Audi's were also having issues with premature wear. They said the FX350 should last longer, but no one has high miles on this clutch yet.
To me it seems a segmented clutch wouldn't last as long due to less surface area compared with the full face clutch. While the segmented might be able to hold more power I would think it would wear faster due to less surface area to the flywheel.