thanks for this interesting contribution, Mark. I listened to some of these samples and at times I felt there might be a bit more richness than with the Special Edition alone but in general the sound was rather on the harsh side. I'm still rather agnostic. Also, I'm coming round to the idea that you need VelXF for a typical tring quartet, otherwise the sound is simply too bland -- the biggest probem being a real muddiness in faster passages. On the other hand, setting the VelX slider on maximum gives a real brittleness to the violins in particular so I've decided on around 90 for the violins and nearer 100 for viola and cello which is the best compromise I've found to date and guarantees that slow sections at least are genuinely expressive.
You can see an example of my efforts here if interested. I suggest starting at 14.20 for the short scherzo which I think is probably still better with Wallander but certainly an improvement on my previous attempt or straight to the Cavatina (yes, exactly --that one!) around 17.00 for lyrical expressiveness.
https://app.box.com/s/rbqotm0dou76u9dk911p8hvfounhkfnh
David