When I do my dance stuff, which is full of frequency range extremes, I try and mix as quiet as I can and always set the master at -3db too to make sure I have some headroom.
I had never stopped and thought about the above, but it makes complete sense as when I mix at lower volumes the levels between tracks when they change are always much smoother transitions than when I have mixed live with the music cranked up seriously loud.
In the same respect when I playback my mixes loud it always sounds smoother transition wise than when I listen at lower volumes.
It now also makes me feel a lot better about turning the parametric EQ on Alpine head units down to -5db at 3khz and still feeling it just isn't enough!
