Rosetta doesn't need a wingman so will validate as you upload. At least this means there won't be a validation backlog as per Universe, but does also mean Rosetta will play very different to the other projects. An interesting sprint.
Trouble is you download, and it will only give so many WUs as boinc can't predict crunching time properly (one of my PCs showed 3 days per WU, when 3 hours was more realistic. As a result some have run dry overnight.
Watch out too, if you don't get WUs when you expect, maybe something is busy, or whatever, boinc will quickly back off it's communications. One of mine doesn't want to speak to Rosetta for 24 hours