I think I am going to experiment with wicks first. I like 6006 mixed but not straight. As far as the jar being over wicked, I don't see that as the problem because it is not sooting the jar and it actually wants to bog down in the fat part of the jar. The jar is an 18 oz. Victorian Keepsake and I have it double wicked. If it was depositing a lot of soot on the jar or was burning really hot, I would say that is the problem. I really think it is something screwy with the coating on the wick, but may be wrong about that.