Out of interest, what is your personal view of SSV Wide vs Portrait? When I bought it I was just about to start a project, so I made some quick tests and felt Portrait sounded more natural to my ears, but I didn't really do extensive testing. If you have some thoughts to share that'd be really interesting!
They follow different ideas, obviously. "Portrait" is the classical MIRx setup, in any sense of the word: Lots of room, long reverb and an explicit sense of depth. "Wide" adheres to the "Synchronized" approach with more direct, in-your-face instruments, less reverb and a clear focus on width rather than depth. The former would be my choice for pure orchestral pieces, while the latter lends itself clearly to the popular "hybrid orchestral" arrangements.
HTH,
/Dietz - Vienna Symphonic Library