We are having problems getting a smooth top on our container candles. We are using the 464 blend and are trying different types of wicks. We are letting the wax cool to 115 -+5 before pouring. When the candles cool, we are getting a semi rough random tops. We have tried remelting with a heat gun but it just cools the same. Any help would be great. Here is one of the candles we made for a test that has this problem. Ignore the hole, that was a wick problem and we only burned it for a few minutes.