Hi soaping friends! I have been making soap for about 3 months. I have been using only EO but ventured to buy some FO from Aztec Candle Making Supplies. I am not sure how much FO should I use. I have used Fragrance calcs from Brambleberry, Nature Soaps, The Sage. They work fine with EO because they are universal (?). They work only with the FO they sell. Unfortunately Aztec doesn’t have a fragrance calc!! So my question is, how do I know how much FO to use?? I usually make a 2 lb soap, if that helps. Thanks so much for your help!