The Story told to me by an old AID inspector, that the first Australian built Mossie to crash was traced to the fact that for some reason the first lot of plywood, came wrapped in grease proof paper. The end result was that the airplane fell apart caused by lack of adhesion by the glue.
Oh how easy it is to be wise in hindsite, but the pressure that must have been on all production staff in those days must have been great.
Regards
Col