I have not considered changing fins before and have always surfed with what was in the board. Today I broke one on a 9'6" naish (quad) and before I replace it I was wondering what difference it would make to change the set up bigger or smaller etc.
How would this effect performance
Does it effect stability

What suggestions does anyone who has played around with fin set up or those who shape boards have. As we approach summer and the conditions chop up a bit more what fin size assist stability (if any does)
I know it is not the most exciting topic but what people think would be appreciated.
Cheers