So I'm well into the throes of the new SF novel and, as alluded to previously, there are a lot of characters in it. The whole thing is written in third person from the various points of view of this multitude of characters, and I've employed the technique of having the narration reflecting the character it's dealing with at any particular time. I'm just beginning to wonder how sensible this is. With some of the characters it's almost indiscernible, given their similar backgrounds and motivations, but with others it's very pronounced. For instance, at the most obvious level, you've got American characters where the narration will refer to their pants, whereas if they were British I'd use the term trousers, or jeans or whatever.
Any opinions on this approach? Using such a diverse group of narrative voices is part of the joy of more non-traditionally-structured (like David Mitchell's Ghostwritten), but can anyone point out this type of approach in a novel with a 'normal' multi-character structure?