Congratulations on the new bass.
Before sending it in to the mothership (1) check to see what the current waitlist is like, your don’t want your bass sitting there for an extended period if they are currently overloaded with work, (2) Given no RF upgrade has been done, take the bass everywhere you will be playing it to see if you are troubled by RF interference (I have no problems at home with one of mine but in 50% of venues I can’t use it. On the other hand I also have a Series I with no upgrade that has no problems) and (3) if #2 is a problem, get the upgrade when you send it in. It’s not cheap but on the bass I’ve had it done its now absolutely quiet everywhere I play.