Looks like 4 Way Fin system. Good for gear heads that want to test different toe in angles. 4 Way also has adjustable ‘cant’ aka tilt angle to the bottom of the board.
Aesthestically they turn me off (just like 4 Way) because the base receptacles are so big. But to each their own I guess. Props to people like this that are creating new products though!
Do these offer infinite adjustment as far as truly swiveling and locking at ANY toe in you desire???
Have you seen the new firewire ones? They pivot the other way. Looks like they are set on a door hinge. I saw them at the surf expo but there is a link on shopeatsurf.com.