do surf fins really affect the riding?

Question

i recently changed my fins on my 6'0", does it really affect performance that much ? or is it the industry simply trying to make more money ?

Answer 1

yes, it effects the stability and ability to turn. Imaging trying to surf on a boogie board with no fins. You would have no control.

Answer 2

i guess so..

...These provided surfers with the ability to alter the riding characteristics of a surfboard, by changing the size and shape of fins used... (http://en.wikipedia.org/wiki/Surfboard_fin)