Ted the Kiwi said..
I love FCS 2s - lots of discussion on the streets about how they can pop out etc. never had an issue myself. But recently have become convinced to put a single screw in.
Only used them in my shorties though. I do have a fluid foils 9" baby that works on similar principles and love it. You can easy move it up or down and inch whilst out in the water.
Same, FCS2 is a nice system. I wish the fins were a bit cheaper tho..
