The "fuzz distortion" was used on a solo-violin in a mix I did a few weeks ago, for a "regular" customer, not as a VSL-demo. Think of the distortion as an added "parallel FX" in that case, not a 100% wet thing. It's more about added color and increased density / energy. - I think the piece is still unreleased, and I'm not in the position to send copies of the mix over the net, sorry ... 8-)
More subtle saturation is used in almost every mix I do, mostly on brass sections and percussions, but also on solo-instruments or basses - this depends a lot in the context. I have to admit that I never compiled lists of what I did when and how during a mix, but I reopened the mix of "Sentimental Mood" a few days ago, that's why I know for sure that I used saturation on the Jazz Bass -> [URL]http://vsl.co.at/Player2.aspx?Lang=1&DemoID=5501[/URL]
I use distorted slap-back echoes on fanfare-like brass a lot, or sometimes subtle, long echoes on harp glissandi. I use flanging or chorusing pretty often to add "interest" to the reverb tail, especially when it's derived from non-multisampled IRs (... the modulation is used in the Aux-send). I use tape and/or tube saturation on the mix bus more or less regularly (not as much for VSL demos, though).
I don't have the time right now to go through all the "official" VSL-demos I mixed in search for the most obvious examples, but as soon as I stumble upon one I'll let you know. :-)
Kind regards,
/Dietz - Vienna Symphonic Library