So, as a final comment on all this, which sounds do you own which you feel would benefit from a good old tweaking?
Okay, probably all sounds would benefit from some work, but the two worst to my mind are the MkII Brass and Viola.
The Viola is all over the place with a C that is so out of tune it should never be played by man nor beast (even Dixon, who's a bit of both). The MkII Brass starts off with three sounds that are out of tune with themselves and then squashes them together. Don't get me wrong, I love that sound and use it a lot, but it is pretty dreadful (much like Martinge's singing) used with other instruments that ARE in tune. So my suggestion here is to go back to the original component sounds (trumpet, tenor sax and trombone), tune THEM and then make a new mix. I don't know of it will lose that "something" that makes the sound so distinctive, but it's worth a try.
By the way, Martinge has been doing an admirable job tweaking the tuning on all the new sounds that I've recorded for Streetly, so the precedence has already been set (not that these sounds are "classic" by any stretch of the imagination).
Rick