I just started making Soy candles for myself and to give as gifts. I have read a lot of reviews and have learned a lot from them! I have finally figured out what works best for the GW 415 in my particular environment, I live in Maine. House temp. Is usually 65 to 67, a little drafty in winter. Anyway, I heat Wax to 185 degrees, take off stove, gently stir in 1.5 oz. of FO/ 1 lb. melted wax. I use a glass mixing bowl with pour spout. I let the wax cool slowly on the counter, stir a few times gently. I pour when wax turns just a bit cloudy and a little slushy I don't use a thermometer here.( approx. 45 mins or so) When ready to pour, I tilt my glass container and pour very slowly at first than straighten out the glass and continue to pour to fill line just before glass narrows at top. I then gently wrap glass(s) with a small towel, clip with clothespin. I have found this method to work great, I might have a tiny hole on top, then, I just use a heat gun on low and remelt the top and it will end up smooth. I really don't need to do this, but I am a bit of a perfectionist. This wax has a great hot throw after a couple days of curing, better after a week or more. Very pleased! Will buy more!