Since I've never tasted any vintage, I'm wondering what the differences are.
Are they because of the availability of certain ingredients?
Is it legal issues relating to amounts of ingredients or the process?
Or is it the recipes themselves that are lost, like the secrets of the Stradivarius?
For anyone who has tasted both, is the distinction in the subtleties, or is it of the same magnitude as going from Czeckerland or Spanish to HG?