Some great shots there john, I like the night stuff they are nice and unusual.
Im quite the opposite to jimmy my camera's setup to undersaturate to give even more dull pictures with higher contrast, but that again is my preference. Some people prefer high saturation some people prefer low. With my rally shots I often have a little bit more saturation than my usual shots as it helps the cars stand out a bit more but my most peoples standards they are still undersaturated.