I have not checked for years, but ferberg used to use a quite short edge length.
I like a short edge because the turn size is more stable with board inclination than a longer, deeper sidecut.
Short edge length buys more time in a turn at a given radius.
Large radii boards are harder to move around on at slow speeds, but produce a beautiful turn shape at speed. Adding edge length causes more board flex which takes away the big turn size we are trying to achieve.
We need to start with a bigger radius on the board to achieve the same turn size as edge length increases. The board becomes inherently harder to ride.
I found shortening edges is just as effective as increasing radii.