New fins or standard fsc2 for retro fish?

[Boudewijnvdb]

I’ve just bought a new board with a retro fish shape with fsc II fin boxes. Can I just use my right and left fins that I use for my shortboard or do I really need keel fins?

[dtc]

Keel fin positioning is usually different to twin fin positioning- so I guess it depends on the board

https://greenlightsurfsupply.com/blogs/ ... -surfboard

[Boudewijnvdb]

It’s this board (see image)

[waikikikichan]

Where your old fins FCSI or FCSII?

What template are they ?