The only thing that bothers me about the CD wicks is the flame constantly flickers and gets tall in a short amount of time. I like how the flame acts with the cotton wicks. It don't get tall too fast. - But I do find this interesting. I gave my sister a candle just a few weeks back and she so happened to be burning it on today. Its straight 6006 in the 16 oz Salsa Jar. CD 20 Wick and the FO is Cherry Crumb Pie. Its been burning close to 7 hours. The throw is good. I used 10% FO Load, and the Jar sides is totally Clean. Most Importantly, there is totally NO Black Ring on the jar at all. I haven't even seen any smoke coming from it.The MP is about a little more than a 1/4 inch. The wick didn't get real high until closer to the 6 hour mark. I did check out the Vanillin Content on the NG Site and it has a small percentage. But I wouldn't mind selling this candle, as the flame performed like a cotton wick. It is somewhat high now as it has been burning about 7 hours, but the jar is not scorching. I feel like this is the best candle I have ever made, but I am still scratching my head.