After a frustrating sail with buckets of ribbon weed last night - just wondering does anyone know of a good wave weed fin that would to suit a JP 99 thruster - the 23cm Ultra fin design seems to be a weed magnet and the long thin strips won't even come with chop hops or decent jumps.

be interested in ya thoughts - every year I say - I must get one and never do.

Yeah must say I never had the problem with my twinnie

The thrusters are a really straight centre fin - will try the MFC 23 I've got. Funny how Weds night not a bit of weed anywhere - last night buckets of the crap after 24 hours of strong wind - was pretty clear out on the back reef - but you had to jump off ya board to clear your fin on the way out in "drop off territory" - rather sharkey / spookey out there

The trouble with weedies in wave boards is they move the centre of lateral resistance back - same as moving a single fin back - so they become much less loose. Good weedies appararently less so, but I've never used one.
Consider though that on a thruster your centre of lateral resistance is already forward a bit as you have those extra two fins farther forward, so a weedy may not kill your top turns so bad.

Apparently the old fella from rec.windsurfing called Wardog makes awesome fins. Have a google for the wardog wave and wardog weed wave or something - the seppo's rave about them

Well the question is Rider
"Where do ya get it/em"

Mark _australia said...

The trouble with weedies in wave boards is they move the centre of lateral resistance back - same as moving a single fin back - so they become much less loose. Good weedies appararently less so, but I've never used one.
Consider though that on a thruster your centre of lateral resistance is already forward a bit as you have those extra two fins farther forward, so a weedy may not kill your top turns so bad.

Apparently the old fella from rec.windsurfing called Wardog makes awesome fins. Have a google for the wardog wave and wardog weed wave or something - the seppo's rave about them

Wez da problem at

Easier to red thumb than engage in a technical discussion........?

russh said...

Well the question is Rider
"Where do ya get it/em"

I can't answer this question for fear that "god" will moderate and smite this thread.

I got a MFC wave weed for super weedy conditions. The fin looks rediculous, and by sight alone you would probably think twice about using it. But, it really is fine. You can barely tell that its a weedy at all. For bump and jump conditions, I would go as far as that you won't be able to tell the difference, except, you aren't catching weed. Worth checking out. It does look silly, but don't worry about it, when its weedy, you will planning and glad you had it.

I use a JP 26 weed wave fin when it is very weedy, which is a lot of the time, otherwise a standard JP 26 wave fin is generally a bit looser in the waves. The weedy is really very good and gives the board more straight line stability but sacrifices in the other area. (Good with the 5.9m and 5.3m sails). When using a 4.7m I go to the 23 wave fin as the 26 weedy is too big.

Would prefer to use the standard wave fin, but when the wind is onshore there is usually a lot of weed closer in. The standard wave fin will not drop off the weed so it can become annoying until you get a bit further out.

Just be careful when you lift the board out and carry it all up the beach as the weed fin does go past the end of the board and it can nick you. Blood in the water is not a good look.

Generally, if you can afford one, it is worth the investment.

Mark _australia said...

The trouble with weedies in wave boards is they move the centre of lateral resistance back - same as moving a single fin back - so they become much less loose. Good weedies appararently less so, but I've never used one.
Consider though that on a thruster your centre of lateral resistance is already forward a bit as you have those extra two fins farther forward, so a weedy may not kill your top turns so bad.

Apparently the old fella from rec.windsurfing called Wardog makes awesome fins. Have a google for the wardog wave and wardog weed wave or something - the seppo's rave about them

I have a few of these for powerbox and I guess the advantage is that they sit forward in the fin box. They are heavy though, especially when you use them in a Hifly Madd (twin fin).

I ordered them a few years ago, and when I went to get some more they told me they were no longer shipping outside the States.