Phillip,
I used wood on my first KR and had no problems with 185 hours and as far as I know, the new owner never had any problems either. It had no dampers. We are using aluminum on this one with no dampers and I wish I could tell you that we had 40 hours on it with no problems, but we only have zero hours so far. See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering
