Nuendo 5.5.6 on OSX 10.9 Mavericks

Thanks Hugh.
The only reason I really have to change is to be able to try some UAD plugs like the 1073 etc.

I’m torn though and may just stay w/ 10.6.8 and use the Pultec mk2 instead.
However, it sounds like you didn’t experience any real problems. That’s helpful.