If you want taste; perhaps foliar feeding is not for you. I haven't noticed a difference in taste but I prefer my weed's smell and potency. It almost always tastes like smoke to me, regardless. Personally, I like foliar feeding. It has its uses. I feel that a plant with a slight nutrient burn can quickly be cleansed with pure water by being foliar fed. Also a plant showing a type of nutrient deficiency can be quickly corrected by applying a much needed nutrient by a foliar feed. Roots take time to make a difference and every moment your babies are sick they are growing slower. Besides, if you are growing different strains or different sized plants using the same reservoir... some may need more of a nutrient that the others have in abundance. Foliar feeding allows you to play doctor to individual plants. In my opinion foliar feeding is one of the single most useful tools to help a plant grow to its potential.