I checked the articles on Pugski, and then I checked the articles on SkiTalk and see nothing obvious ON EITHER SITE!!! Having spent much (too much?) of my pandemic reading about skiing here, I cannot help but see sage posts debating the efficacy of edges being at x degrees with stone ground bread (or was it bases?) while other equally (one assumes) sagacious posters swear that y degrees is appropriate when edging turns at 80+ mph. I exaggerate only slightly. All of this makes me curious to learn just what the cognoscenti are talking about but I know not where to look to learn. (I will say this though - the second hand Z-90s that I just bought from @Plai had a recent tune from Smoothrides and those edges are darned sharp). After y'all have had a darned good laugh at my ignorance and said "Dang, I'd previously assumed @RobSN was a skier - now I know better ", can anyone point me to something good that explains it all? Ta everso.