Just for fun I used the ski sidecut radius calculator on my 80's 225cm Atomic AF91 downhills and I came up with
I can't believe I used to ski these at Squaw on bumps occasionally!
Even thought is not exact, I wanted to see how a 163cm Volkl Kendo (127-88-109) could be nearly as stable as a 10 year old 188cm GS race ski (103-65-93) and the contact surface area was greater than the GS ski's due to its width.....
Kendo 163 surface area is aprx 1,5491.66
Rossi 9x GS 188s' aprx 1,439.30
Atomic 225 DH aprx 1,597.26
Interesting how close they are, especially the shortest kendo is to a full length old DH board!