Hi, I have very recently started testing Glass Glow Container Palm. My first tests look wonderful and burn very evenly down the container. However, after a few test burns, it developes an odor of smoke/burning, but only once the candle has cooled (it also has soot across the top). When lit it is fine, but when cooled it is disgusting. I am using a 16oz jar and wicking with two 30-ply flat braid wicks. Why does it do this and how can I fix it? It has happend on one candle with liquid dye and 6% FO, as well as as an unscented, uncolored candle (so far my only two tests). Any help would be much appreciated. ~Dan