The SYNCHRON-ized Solo Strings do not miss any samples, in fact they add new ones. They simply do not include the content Solo Strings II (which are con sordino articulations).
The SYNCHRON-ized Woodwinds will also see an update with added articulations, but there are some instruments not included that are available in the Woodwinds I and II bundle.
In general the SYNCHRON-ized version is the one we encourage people to use, if the requiered instrument is already available as such. The samples are polished and reworked to take advantage of our new and advanced sample player, the Synchron Player.
This said, the VI instruments are by no means bad - they are not as straight forward to use compared to the SYNCHRON-ized ones.
But with the current deal and the possibilities to upgrade to the SYNCHRON-ized libraries later I would not miss out on these!
Ben@VSL | IT & Product Specialist