Always a pleasure to read your posts, scentemental. I do agree that there are inconsistencies in many natural extracts, which is rather frustrating for me to think that if I made a batch of fragrance with these natural extracts, I may not be able to reproduce the same blend. I agree that it seems a lot easier to use synthesised aromachemicals because they are definite and reproducible. That being said, there is a certain allure to the variation in natural extracts, it adds an olfactory facet that the perfume may not have designed, but nature. This adds a more 'artistic' method to perfumery which may be more appealing to some people than a quantitative approach to perfumery.