I have been look at the boards (great info as always). We will be using the Moorings. How competitive are the provisioning stores as far as prices and what they offer. Can you walk to anyone of them within a short period of time? We will be there a day before we are scheduled to leave and it might be nice to maybe get some stuff or make sure we have what we want.
Since you will be there the day before you leave, you could shop at the huge Riteway store (huge by BVI standards), and ask them to hold the items for you, then deliver to your boat the next day. We've done that with Bobby's before.