Sam, can you elaborate on the vinylester vs epoxy details that you mentioned? I am not an engineer but have read and worked with... I would say more than the average sailor regarding composites and materials science.

Beside cost, I have never really heard of any benefit of vinylester resin over epoxy resin in virtually any application. My understanding has always been that epoxy resins have greater adhesive properties, greater strength and stiffness properties, greater fatigue resistance over time due to the nature of the cure (vinylester cure seeing ~5-10% 'shrinkage'), greater resistance to water incursion, greater chemical and UV stability, etc. Of course, this all in addition to epoxy being easier to work with, having a longer shelf life, less volatility, less harmful to human life, etc.

Not trying to pick a fight over technical details insomuch as trying to learn more about a subject that maybe I didn't have as good of a grasp on as I thought I did.