I wish I knew what the secret is also, I think maybe just beginners luck. I heat the wax to 185, add 1 dye chip stir well, cool to 175, then add FO and stir for 2 minutes, let cool to 165 then pour slowly into room temperature jars. I am adding 1 oz. Peaks FO:smiley2: (only ones I have used so far and really like them) to 1 lb. of wax. My tops are perfect until I burn them:sad2: I have some Premiere wicks coming so I am going to try them to see if it helps with the top issues I am having after burning. My melt pool is not very deep only about 1/8 in. even after 4 hours so I may need to go a little hotter to see if this makes a difference.