Hi - just shaped meself a 6 4 X 22 fishy thing… on my last attempt at such a shape I just put the standard thruster set up ( front fins @ 12" from tail) …
I removed the back fin to see what difference it made + to my joy dound the board super loose but still drivey…the board worked great.
Now then, upon reading the archives, std twin fin settings seem to be 7 - 9 inches from tail…I’ve never ridden a twin fin fin this set up but I’d imagine it to be much stiffer than the 12" up setting…
I’m considering a std set up (ie 9" up) …what differences would I see (I’d imagine greater drive but stiffer)?
Seems to me, fin placement is not only personal preference, but based on WPoint of the board, rocker, your surfing weight, and where you like to stand on your board.
If WPoint is well forwards, and rider is heavy for the size waves, seems a more forward fin placement, coupled with rider standing in trim position forwards, should work well.
Opposite case is small rider using WPoint back and thick board, needing to stand on the tail, needing fins to be placed well back, like the leading edge 9" example.
Don’t forget, board too loose, add bigger fins.
Board stiff, use smaller fins.
My current 7’9" twin fin, with 6x6" fins, leading edge at 14", works well up to head high, then needs better surfer.
Hey Ben, thanks for the bonzer offer but it’s a flat into V btm. I’m currently 215lbs when towelled dry…hence “silverback”… a friend thought that that’s what I looked like one day at beach when a stupid longboarder ran me over breaking a new board of mine into two pieces… it was winter and therefore a full wetsuit + hood + bad temper + overall shape I guess = …
I just thought a silverback was one of the …er…more senior citizens with silver [read ‘white’] hair …thanks for setting the record straight there . Oh , and no offence intended , just in case you , like me , are one of the dinosaurs the aussie surf mags ignore [people over 40 , who actually surf ?? nah ! couldn’t be !! …do THEY exist !!!].
