I am testing out Synchron Strings 1 and so far very impressed. VSL have been on a huge journey throughout the years, generating incredible libraries and software for the world that really no one else could have done. In my view this latest approach is the holy grail and actually represents the best of both worlds - a beautiful ready to use sound that is natural, and also flexible enough with the MID and close mics to use as a dry library. I'm a loooong time user of VI Pro, VE Pro, and MIR and I know all these libraries and software more or less back to front and inside out :)
The Synchron Strings recorded on the Synchron stage are supposed to have the sound of that beautiful location imprinted on it *naturally*. Even then it is dry without the added reverb by way of the reverb channel in the multi mic mixer. Because all venue recordings add a touch of reverb on to the final recording (almost all). In the old days it was a Lexicon, Quantec or TC Electronic. They are creating a classic orchestral recording signal chain and process with immense flexibility.
If you want a dry sound to feed into MIR, all you need to do is turn off the Reverb channel in Synchron player, as well as the main mic (if using Decca mix) and the room mix. I've even compared the Mid Mic mix on it's own with the VI Pro samples and they are very similar sounding, just richer. I think the close mic on it's own is too dry, but if you really want that, it's there as well.
The MID mic + a bit of Close MIC fed into MIR, or even just the MID mic into MIR will be absolutely in my opinion dry enough to place in any of the locations MIR provides and not suffer at all, and also nice an efficient for your CPU. For many people, even the Main decca mic plus the MID and/or Close into MIR will also still be dry enough.