Bought three sets for my quiver. Love the design and the quality is tops. First ride as a thruster really lit up my old board. A change to these fins made everything faster and better while easier to control. Next I rode a quad which I felt was perfect before but the new H4. (2 large, 2 small) set up was even better than before. I am trying them out in different boards and fin size combos. I think they are a superior design and materials and craftsmanship are second to none. The center fin is uniquely spot on. The hatchet side fins have to be felt to be believed, excellent feel and hold, fast yet smooth control, with a purposeful outline. A real beauty too! My feeling is that these fins work exceptionally well in smaller size surf and they should be even better with more wave size as needed. I think they nailed it on the H4, flexible snappy yet speedy firm response. I am looking forward to summer for sure now!