TravelTalkOnline Forums Travel and Vacation Forums US VI and Puerto Rico Picking Up Crew Part 2

So I liked the idea of picking up crew on St John but didn't want to hijack Ugo's thread and I had a few questions specific to that option.

1) existing crew check out of BVI and into Cruz Bay. Is there an app for check in? Swear I saw that mentioned before. Existing crew will be on a bareboat out of Tortola.
2) new crew arrives STT and ferries to SJ. How late to the ferries go? Is it the same limitations as going to BVI?
3) so far no immigration impact for new crew, correct? They just disembark ferry and all is good.
4) crews meet up, rum follows blah blah blah. Let's assume a couple of nights around SJ.
5) Can all crew now check out on an app? Do we all need to return to Cruz Bay?
6) Return to BVI to check in at Jost, Road Town or somewhere else.

Sorry if this has all been covered. We've always done the normal ferry to Road Town or flight to EIS. We've never done customs on boat.

Dave