I started using FCS V-2's when they were first produced 10 years ago or so. I used them on my high performance shortboard. They worked great. Then I got a another set and put them on a fun board. They turned the fun board from a pretty good board to a full on rocket ship and I started surfing it in conditions that I would never have dreamed of using it in before. Then I put them on an old 6'9" mini gun, which is my favorite Rincon board for when it gets overhead, and it started working better than it did before. So, as far as I can say, these are the best fins I've ever had.