This idea has been playing on my mind for some time now. Concave is basically from surfboards and it determines how water flows under the board. Different concaves have different results.
Now very few of you will probably understand concave, so I'll try to explain it a lil better.
These are concaves, they facilitate water flow to allow for different types of waves. Nearly all skis have a flat concave on the base. But what if ski shapers started putting single or double concave? Any ski nerds out there? How would this go?
Now I'm thinking this would be mainly for powder skis as a double concave would allow for more of a flow through deep snow, but that's just my hypothesis. But I'm keen to see some more opinions on this.