The Moorings used to send the Scott Virgin Islands Cruising Guide and a chart with the contract package. 7-8 years ago they stopped sending the Cruising Guide. The package I received for our trip in November did not include a chart. It also did not include the chart briefing schedule as it did in the past. When were down last December we were not told about the chart briefing at the customer service check in. We were pressured to rent a cell phone though.
As a long time Moorings customer there has been a noticeable change in the amount of information they are imparting to charterers. I attribute this to their growth and the desire to get boats in and out quickly. They still offer the chart briefing but you have to search it out.
I do want to distinguish the chart briefing from the boat checkout which is mandatory and informative.