From what I have been told the latest kits already have carbon fiber sandwiched in the layup. My latest kit wsa shipped in early August and did not have the extra CF in it. I added the plates per the addendum, I had already added a strip of 1" wide CF tape top and bottom from in front of the front spar and to the vertical fin. The plates have made it rock solid. My original kingcat survived several not so stellar landings and was trailered over considerable distance this summer, with no signs of stress cracks. I believe that BVM is recommending the reinforcement to all kingcats if my original had not crashed I would have added them to it.

David G. I think the problem is just surfacing so it is being addressed, what more could you ask?