At the risk of sounding like a gramophone record, testing is definitely the key to good candlemaking. And to go out and buy supplies, and assume that one is ready to start a candlemaking business, is a little premature. Most of us on this board are still testing after many months, and even years, and have learnt along the way that it is not as simple as throwing some wax in a container, or mold, adding fragrance, and expecting a quality product to pop out in the end. It take a lot of testing..... Testing of waxes, and adding different additives to get just the right formula that will burn your candle without blowing out the edges, tunnelling or worse yet, becoming a flamethrower!!! Testing which wick works best with what wax. Testing the hot and cold throw of different fragrances. And so on, and so on........ If it were easy, most of us would be thousands richer, and not thousands poorer through constant testing. Good luck in your endeavour......