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I have an SD potstill, shown in the photo below. I'm also in the process of putting together an SPP LM/VM column.
I'm interested in exploring the still design space in-between these two extremes -- particularly for rum and not-fully-neutral vodka. Short of adding actual bubble tees and plates, what other good ways are there for me to incrementally add more effective plates, or to otherwise improve product quality during spirit runs?
I'm thinking about something like a mini-CM approach, with a variable-length section packed with stainless scrubbers? (I have a Big Baby available to use as an RC/dephleg).
Is it possible to place a single 4-inch bubble plate on the lower end of the torpedo reducer? (and if so, will a copper plate at the bottom of the column have the same anti-sulphur effect as copper foil at the top?)
Are there other configurations / variations worth trying?