However, I have to ask if the 200 Proof is a deliberate red herring or a happy accident?
You can't distill past 192 proof (at which point water & ethanol form what is called an azeotrope). 200 proof alcohol is laboratory reagent grade: synthesized from water free (& very toxic) precursors. With or without trace residue reagent grade alcohol is not something you'd ever take off the laboratory bench to drink.
You'd have to be batshit crazy to drink that stuff -- suiting Harley to a T.