Dietz is correct on that. It is the biggest problem I have with it. If you use it in stand alone in your DAW and apply VSL suite reverb (hybrid sounds awesome), you will get good results. It's very time consuming and painful to setup a true divisi setup in MIR PRO. I have been working on it and frankly am tiring of how much work it is. Because of the pre-panning, if you try to load up the divisi Auto Arranger MIR will center pan everything in the divisi. The only way to get seperation of the sections again is to either place the entire divisi into one kontakt/MIR icon, and stretch it to the size of an Orchestral Strings icon, and place it directly in front of the microphone or the other option is to seperate every chair on the stage, but this made for an incredibly difficult setup for auto arranger.
Most importantly, I still find the out of tune samples make me want to pull my teeth out at times. So I mostly only use the ensemble patches to layer with VSL samples. They add a nice color to them if you blend them in the background and let VSL Lead them. I simply cannot use them alone, they are to out of tune. I think some people love it and swear it adds naturalness to it, but to me there is a fine line of out of tune. For instance, the more real way this would happen is the way VI Pro 2 does it. It starts quickly out of tune on the attack, randomly in different tunings each time and instanly comes into tune. This is what all professionals would do for their instruments if they started out of tune. A true professional can hear it instantly and knows just what to do to pull it back in tune. The problem with the LASS samples are they are out of tune completely and staticly. So once you start the note, that particular note stays out of tune for it's duration. That part of it gets them removed from my music 90% of the time.
I don't really have any demos of LASS in MIR alone as like I said I never use them alone for anything and I certainly don't much feel like setting up all the work it takes to make auto arranger work. It's just easier for me to load it into my DAW and blend it there if I need that color for a phrase or song.
Maestro2be