Take your time and read about candle making as much as you can. There are lots of different types of wax out there and you really need to find the one that you are comfortable with using. I use KY's Soy125 for my jar candles, I like to use it because I don't have to add anything to it and I love the candles that it makes. Which ever one you end up choosing you will have to test, test, test. That's what it is all about, testing with different wicks, fragrance oils, colors everything effects how your candles burn..having patience and not giving up is the name of the game with candle making. I am really surprised that Yankee would tell you what they use, I think you will find better info on this site than asking a big manufacturer what they use. Some of my customers have mentioned that Yankee isn't that great anymore that they only get a good scent throw the first couple of burns and then no fragrance as the candle burns down.