Definitely go with natural flavours. Most imitation mixes taste nothing like what it is advertised as (including orange - which should be simple). I have found that lemon/lime flavors generally taste like lemon/lime and therefore end up buying that. I would also buy Vanilla - it is a powerful seed and the natural extract carries a distinction that cannot be confused with other artificial flavors. But that is all it is - a flavour. We should be a lot more concerned about the actual substances that make up that flavour. What about a GOJI BERRY extract - you would sell loads of it. Most people know that a goji berry is highly nutritious and contains antioxidant levels higher than any known food. For example: blueberries will contain 10 times less ORAC units (Oxygen Radical Absorption Capacity) per 100g than Goji's. Goji's are high in energy, protein and carbs! I hate nothing more than the feeling coming off a long days riding knowing that I havent eaten anything substantial but have mowed packets of artificial sticky-stuff. There must be a massive market to tap into more natural tastes and products in liquid or "goo" form. Just my opinion
