I suppose it doesn't matter, the process is the same, whether you're using the VI player or Synchron. I have spent the past year transitioning to Linux, and just recently was able to make Vienna libraries work. So i haven't been using them for awhile. In going back to them, I again had to confront the reverb issue, always a difficult one, for me at least. I tried using the default setting of 30 on the VI player (not Synchron), and, as in the past, found it is too much. I'm using 5 on the flutes, 7 on the clarinets, 10 on the Horns, 12 on the brass, 14 on the percussion. Then routing everything to my convo reverb, where I'm using the Bricasti impulses on the Cakewalk Perfect Space plugin, with send levels of about 32. Pretty much what I did on Windows, except I was using EW Spaces from my convo reverb.
It was a great joy to be able get Vienna sounds again in my music. you have to jump through a lot of hoops to do so, and it's a very steep learning curve. but for me worth it. I gave up on Windows after Windows 7. At this point, I am using everything I did on windows, except for East West stuff. but with Vienna now working, I don't need it. I also have Cine Samples going, Garritan, plus some other odds and ends. I have completely transitioned over to Linux now. It would be so much better if companies made their products work on Linux, and not just windows and Mac. but fortunately it is now possible for probably 90% of software.