I wasn't talkig like metal edges. It's was just a sidecut then it branched out to magnetraction, vario grip, grip tech, frostbite edge. The bigger advancements in edge hold.
What was the first binding manufacturer to start the canting then?
Dynastar had a 3 or 4 contact pointed ski in 1977.
Plate bindings mid 80's who gives a fuck company sucked dick then sucks dick now.