I didn't get those wooden side fins with my 9 5 Hokua.
Im experimenting with quads right now.
Running GL front and FCS g 1000 rear.
I like how loose and quick the board feels with this setup.
But I do think it makes it a tad more skatey, and therefore less stable underfoot while negotiating for a wave.
Im near 100kg and have found the board stable enough and a good performer for my skill level (intermediate and rising.)
I do find in steep waves the board threatens to nose dive often (little more rocker needed perhaps)
I have a 5th fin / nubster in house and will begin to add that to the mix