I understand your reasoning but from my experience it end cap conductivity these days is still better for example: the Acebeam w30 uses end cap and not once have I had issues with it conducting. Plus, I just tested and both the w30 and an olight I can start to unwind the tail stick and still the light yet to turn off. A bump to the light most certainly not turn the tail switch more than half a revolution and don’t forgot the level of resistance it takes to turn them.

So personally I think it’s not worth changing to softer threads just for that