I\'d been a little down on CAL scripts since it appeared to be interpreted and it didn\'t support programmer goodies like timers, but I thought it would be worth taking a little time this morning to look into it further.
CAL is indeed interpreted, so for various reasons it wouldn\'t work well for realtime - there\'d be added latency and jitter. In fact, it appears when I looked at the docs and tried to use it that CAL can\'t be used in realtime anyway, which is probably just as well. EVerything that CAL does happens to a recorded track. So my impression is that CAL could be good for getting bowing variations (up/ down automatic changes) since this kind of thing is fairly hands-off, though MT still has the advantage that you can hear how it sounds as you do it. The legato and mono features I think are things most people would want to use in realtime since hearing legato/mono would usualyly affect how they play.
MFX is another story, and from a users point of view I think it should be just as easy (or easier) to use then CAL. It can be used real time though, which is a big bonus.
Also VST is interesting. It\'s hard to say if we\'ll do these since for the most part MaestroTools works fine - MFX/VST would just make configuration easier with sequencers. We\'ll let you know if it happens. Gary has some plans that may make it more likely going forward.