Have them on a Red Paddle - Explorer, nearly 13 feet long. Use it in order to ride in the sea wave and operate long-distance paddling. The Finn proved thereby, keeping the SUP significantly better in the direction as the wobbelige original part that was in it. The Finn is still moveable genut to also carry out a change of direction in the shaft can. The material is very robust and small scratches can be easily polished out with fine emery paper. I also have a 25cm Freeride. The is then but suitable only for long distance. This Wavefinne is a good compromise. Conclusion: Good allround fin, very good G10 material is robust and that grounding forgive, runs well and also comes at a very reasonable price.