Hi Sandy,
Sorry to hear that you have had an issue with the rudder in your boat. At Think, of course we are concerned with any issue that arises with one of our crafts, like all conscientious builders. Also, we are happy to help find a solution to the problem in a respectful manor.
In my opinion we have a very strong and well designed rudder box, but that is not to say that things can't go wrong on occasion, or that they can not be damaged by impact.
Please contact me directly at
daryl@thinkkayaks.com , and I'll help you sort it out.
Best regards,
Daryl