The ski is certainly not the limiting factor in my skiing as I am a -15,-22, and sometimes -28 course skier at 30 and 32mph. I would very much like to solicit opinions as to whether or not the technology changes from my older S2 to a newer Radar would make any difference for me. Horton, I read your excellent reviews of both the S2 several years ago and the Lithium Senate. You mentioned "the sweet spot" at my speeds concerning the Senate which has got me thinking. Thank you.