Top notch repair work! I'm in the process of similar things to get my TheMightyHobie18 race-ready for the NCC 100, some of these tips will come in handy. Looks like my top competition will be Krantz on the F20c, somehow I doubt my asym'd TheMightyHobie18 will keep up...

Your discovery of the void in the daggerboard area, along with some recently acquired information (lack of Nacra parts availability) is making me lean towards Hobie or AHPC for my F18 buying needs. Granted, this same thing could happen on any of the platforms if the builder isn't checking quality very well.