IME the modern tendency to use kiln-dried woods is a major contributor to structural issues - FWIW I
never encountered the problems you cite in any well-made vintage (roughly pre-1975) instrument, produced when woods were routinely air-dried and aged for a decade or more, and I've seen orchestral strings whose age could be reckoned in
centuries in better shape than many guitars that were 15-20 years old. Bottom line, as the saying goes, is that it's all about the benjamins; until/unless we as players collectively demand better from the major manufacturers, they'll play to the lowest common denominator in the name of higher profit margins and maximum market saturation - and we'll get exactly what we deserve...
