I saw in an old Matronics post that you were considering using a 1080 shock cord instead of 1080HD for your nose gear. Did you, and how did it work out? I am building a CH650B and have the same concerns about rudder stiffness.
Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.