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Old 15th July 2009, 05:07 AM   #12
luis garcia yuste
New Member
Join Date: Dec 2006
Posts: 13

Hi Dan,
thanks for your help.
I put the convert mph to knots.

4.7m/ MFC Free Wave 25cm - fin position all the way back/ 25+ mph ( 21kn)
4.0m/ MFC Free Wave 23cm - fin position all the way back/ 30+ mph (26kn)
4.0, 3.5m/ MFC K1 21cm - fin position middle/ 30-35+ mph (26-31kn)

But, you donīt use the original fin 22cm Natural wave of K74?
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