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Pacey said..
Yes, I think some manufacturers measure along the leading edge rather than perpendicular to the bottom of the board.

Setting the fin forward on the tuttle head just moves the centre of effort of the fin forward, much like having the fin box forward. So if your fin box is already forward as it is in the WT 64, you dont want to move the fin forward on the head as well.

Thanks

I compared the 28 Maui weedy and the set forward Makani yesterday. The 28 was too small but other than that I didn't notice any performance or comfort differences.
Conditions were mainly 5-12kts occ 10-15kts and some 20kts plus patches. I rigged for the gusts so I was mainly under powered. great in the gusts.. It was a pretty crappy day but then it is winter..
I'm now staying up near the mast out of the straps until I'm more powered up and things feel more comfortable.
I think much of the issue was me getting back on the board too early.I was trying to use the straps for security in the gusty wind and chop.
Next thing is to find a fin that will be bigger for the light stuff but not fly the board uncontrollably in the gusts. That way I can use a larger sail.

Just a trivial thought; when you lower your boom 15 cm you have to move your harness lines forward. The harness centre of pull always lies on a line between the mast foot and the sail's centre of lift.

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NotWal said..
Just a trivial thought; when you lower your boom 15 cm you have to move your harness lines forward. The harness centre of pull always lies on a line between the mast foot and the sail's centre of lift.

Why's that?

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NotWal said..
Just a trivial thought; when you lower your boom 15 cm you have to move your harness lines forward. The harness centre of pull always lies on a line between the mast foot and the sail's centre of lift.

Errr... no.
Lowering your boom can however affect outhaul tension. And that depends on the angle of the boom on the mast.
Adjusting outhaul tension can, in turn, affect the optimal position for your harness lines.

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Basher said..

NotWal said..
Just a trivial thought; when you lower your boom 15 cm you have to move your harness lines forward. The harness centre of pull always lies on a line between the mast foot and the sail's centre of lift.

Errr... no.
Lowering your boom can however affect outhaul tension. And that depends on the angle of the boom on the mast.
Adjusting outhaul tension can, in turn, affect the optimal position for your harness lines.

I've noticed how boom height affects outhaul..

simmer sails have outhaul +/- dims on the sail at the boom head. pretty handy.