Late in the day, and I have only scanned all the above, but....
composites, or more correctly plastic polymer composites, do degrade with age - they constantly release fumes (smell plastic boats, etc.) i.e lose molecules so that the resin that glues it all together changes. Some polymer resins do this more quickly than others - it's the same in all plastics. Many such products have an expiry date, others rely on obselescence or changing fashion.
Do we have a polymer expert in the house?
....this in addition to the other aspects like wake, A/C handling, etc.
WE (NOT an expert!)