So my son skied my 2017 Senate Lithium last year and loved it so he is shopping for a new ski. Always looking for deals he found plenty of 2018 Senate Graphites out there but no Lithiums. He skis 34mph and gets into 32 quite often but not improving beyond that. So would he be disappointed with the Graphite? Or should he open his wallet and keep looking for a Lithium? Thanks for any and all input.