Be sure, that Synchron Strings I is not produced before the development of the Synchonplayer.
The first Idea for the Concept of Articulation-dimensions is already 5 Years old (I constantly botherd at that time most of the responsible VSL-Developpers with proposinmg that concept again and again after being a bit frustrated with the abilities to reasonably make use of all potential of the dimension Strings samples provided but the VI player does not allow to use as smart as I would like to have).
And the Synchon-Strings are from the beginning developed to be used in a Player with exactly that concept. But it is kind of the fundamental core librarie of the orchestra and they are right not to release anything without having solved all known issues.