if you are REALLY concerned about conductivity...
Silver contacts ( go for the solid silver, the plating wears off)
Oxygen Free Copper for the tube and have that silver plated...
Or, just use it until it gets flaky and toss it. That's our society today ... all about cheap throwaway devices.
Another alternative would be to use inert gas filled sealed switches or just add a touch of dielectric grease to the contacts. No arc.
That said, my Provari and my sigelei Zmax both exhibit the symptoms of contact bounce. I'm vaping and look down to see that the menu activated. It's just a result of cost effective manufacturing vs quality (but expensive) engineering.
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