OK, I call bull donkeys. Yeah, yeah, GIGO, but you can make a better product when not suitable in a prior distillation by an additional distillation, IN SOME CASES. Or to put it another way, for some products, on a low-separation-power still, the only way to get to a suitable product is to perform additional distillations. And the still and how it is operated is a critical component, or you would not be arguing with the rest of us about what kind of still is best. Fermentation is important (the fermentor itself probably not so much, if you really want to parse your English), but so is the still and particularly how that still can be and is used for making cuts (or effective cuts, in a continuous column arrangement). Bull donkeys, I say.