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Sub 6 to 8 knots, sunny day, safe water, lots of gently flapping LEIs on the beach, even 19.5m too little power while others around you “Hinderbergingâ€

Now if you get the M3 16m it's got a better low end and you don't need the 40m lines.
That's a big advantage. Also it's safer with the new leashles spinning safety bar.

DrLightWind