Balsa cored hulls
I am wondering if todays materials and lamination techniques have eased the concerns about balsa cored hulls. Quite a few highly respected builders are still using balsa coring (Malo, Regina, Dehler just to name a few), and one would assume that they have been successful with this type of construction, or they would have abandonned the idea long ago...
A little research also yielded the same concerns with foam coring, which supposedly deteriorates between the laminates as well, and there are some concerns regarding adhesion of PVC and epoxy resins.
What are your thoughts?