I may try that although I can't imagine the switch being any better.
On screw threads, using the kind of contact cleaner that contains an electric lube or electric grease will speed up corrosion thereby it gradually worsens the problem over time, eventually resulting in permanently degraded screw threads. Use only the kind of contact spray that completely evaporates (usually it will be a mixture of propene and isopropyl) so that it leaves no residue nor a "protective" layer.
Air gets squeezed out as you tighten the screw threads so not much oxidation should occur from the oxygen in the air if you don't store the parts unscrewed for a long period. What little oxidation will creep in from exposure to air as you unscrew parts to change out the battery or remove an atomizer etc. will be polished away by the friction of screwing the parts together, if the screw threads are kept clean. Due to machining tolerances and natural (very small) imperfections in the smoothness of polished metal surfaces, in multiple small areas the two screw threads surfaces won't touch. The microscopically thin layer of air that results from this in these areas causes a bit more oxidation in these areas which won't matter because the two metal surfaces don't touch, there's no contact so no electric conductance in these areas. The polishing effect of screwing/unscrewing parts moves metal dust and oxidised metal dust to the sides of these areas where dust sits and causes no ill effect, and gets cleaned out regularly with normal maintenance. Frequent polishing of screw threads removes metal until eventually they will have worn out too much to still provide good contact. Polishing of screw threads (with Mothers or similar) should normally only be done to remove oxidation if parts were left unscrewed for a long period or to remove corrosion buildup that occurs if mishandling the screw threads like applying protective coatings that break down due to micro-arcing (not to be confused with arcing) after which these broken-down protective coatings cause more harm than good.......
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