I assume that you have done this before. However, just in case, you might consider staying at the base the last night to reduce stress. I understand the struggle of losing the last night out in a better spot, but we had to catch the 10:00 am a few years back and it was still a fairly rushed morning. With this said, we had kids, it was a Saturday, and our base was in Hodges. The last day rush is a reason that we now fly in and out of Tortola with a midday flight. If you book far enough out, sometime the difference in total costs is not that much. Another thing that influenced us was that the last time we had to catch the St. Thomas ferry for a flight - we were there pretty early - but they sold the last ticket a few people after us. If we would have been 5 minutes later, we would have missed our flight. Again, this was a Saturday, so you should not have the crowd we experienced, but I would not push it. Good luck!