Im with you on not touching that white apron. Its almost perfect condition wise. I do however have a spare set for the game so I'm thinking i might try one as gunmetal. My reasoning for at least trying it is because the playfield now has a darker surround colour (dark transparent grey) the white aprons on it now always seem to be at such a high contrast your peripheral vision really picks up on them when playing. The gunmetal on the lectronamo I think puts more emphases on whats painted on the playfield with out a distraction.
My thought on the gunmetal rails would it might make the playfield feel wider as you eye would not pick up on the vertical separation for the shooter lane. Maybe this would be a good / interesting feel? Or possibly the side rails white with the inside rail gunmetal?
As the legs are also in the need of refinishing i was thinking them as gunmetal might look sharp.
I am so on the fence with these apron / rail colours.