Honestly the tendons made for the Nacra F16 aren't rubbery enough. So Randy and I have decided to order more rubbery plastic pieces that offer much more bend so we'll just modify the tendons.
The tendons are pretty stiff and do not feel very rubbery in your hands. I agree that there is an error in the set-up of your boat. We all know Nacras QC wasn't there for you already.
