six, that pipe is a beauty. I have never heard of anyone not loving their Cavicchi's except this post from foggy. I know a lot of people that say they smoke as good as Castello.
foggy, your hyper sensitivity to stains is something that most smokers are not subject to. If I were six I would not be worrying about this pipe. I have smoked countless Italian pipes from Castello, Radice, Mastro de Paja, Ser Jacobo, Savinelli, Viprati and Caminetto. I would not consider any of them to be second rate and in all honesty the Castello's,Caminetto's and Radice's all smoked better than the 4 Dunhill's I have owned.