@phil: i'm not a friend of keyswitches because i often work on different parts of the song. it happens much too often that the wrong articulation is running as i didn't pass the right key switch when starting somewhere in the track. might be no problem with cubase expression maps but i'm working in logic and there it's a nightmare. i love samplemodeling instruments as they need no keyswitches at all to play musically. dimension strings are close to that. at least for me.
and sometimes it's helpful to have some short notes extra to double long notes with attack.