Surfing Waves

This is the fin sistem of my board and many Brazilian boards these days...
It uses a slot and a small scew, witch is a very obvious way to deal with the whole ting, but the cool abou it is that you can change the position of your back fin, more to the back for stability and more to the front for faster maneuverability, and you can change the angle of the lateral fins for more or less turning

anyone heard about this fins or something similar to it?

it is quite nice..

I have not seen the fins you are on about but there seem to be a few more alternatives to FCS appearing on the market. I guess the fin system you describe gives you the opportunity of placing your fins exactly to give you the best set up for the conditions of the day.