I just want to thank you top for posting these burn pic's and sharing some of your knowledge and experience. I have come back to these pics many times and tried to think about what I see. When I first started test burning my pillars (which was about what, a couple of weeks ago...lol..) I kept uping my wick sizes in an effort to get rid of mushrooms. (even though I have read on some suppliers websites to wick down, I didn't really understand why) I would try wicking down and would very often still get the mushroom. However, the more I look and think about what is happening with wicks and flames, I think that I may be getting more of an understanding of what is really happening. It would seem that the bigger the wick, the more wax it pulls into it. I think that mushrooming must in some form be unburned whatever - be it fo - oils, dyes etc. that the flame may not be hot enough to consume so it becomes a deposit on the wick. At any rate I had some larger LX's that were mushrooming in some of my pillars and after seeing your pics, I tried an LX 21 in one of my recent pillars and it's not m/rooming on 3 - 4 hour burns. There must be a fine line or a least a line where the flame is hot enough to consume all that the wick is drawing up from the candle, yet the wick is not so large that it's drawing too much up from the candle. So, it not only needs to be the correct size wick but also the correct type wick for the wax, in order to hit that balance where the candle burns correctly. Maybe a better way to put into words is that you've got me thinking about the draw, so I'm beginning to think in terms of the rate the wick draws from the candle as well as the heat of the flame. Anyway, thanks again for this thread and helping me see what can be done and for giving some real good visuals for learning more about candle making. :smiley2: Rambled again didn't I.....Oh well...