Well then I definately have not been using enough FO, but noone is complaining. So if I were adding the FCO I would add .5 FO, .5 FCO & 3 oz. Cyclo? I am not good at math infact I absolutely dispise it. Is the FCO like a filler in the recipe or does it have a purpose otherwise? And if I add the FCO can this still be used as a 4 in 1 product? Room, linen, hair & body spray?