For something completely different:
I use expression maps a lot writing in score. I make (software assisted) maps, which are frequently covering most of the available articulations for each of the VSL instruments I use. I am hampered in this by the limitation to 4 groups in the maps. Has there been given thought on increasing the number of groups in the maps, to say 6 groups ? That would make a more structural approach possible for all instruments I use, and I think in general.