Chartering for 8 days beginning next weekend with TMM. Have a week booked in St. John after the trip; will be returning the boat on Saturday, 2/25. Any suggestions about ferry vs water taxi? The only
ferry schedule I've seen is from West End-Cruz Bay and departs at 12:15 which will be tight for me. The next one isn't until 4:15 pm. Any help/suggestions appreciated. The water taxi quotes I've gotten are extremely expensive. Thanks.

The ferry schedules from West End are limited. We use Island Time - Monday our return from TMM to St. Thomas was $825 (that was based on a round trip). A few other TMM owners use Roan with Tender Too Charters - you might try giving them a call.

You can take the Aquatic rentals ferry at 3:30. It's final destination is St Thomas but clears customs in St John and you can just stay in St John (you have to pay full ticket price which is $65 one way). Which company are you seeing from West End to Cruz Bay at those times?
https://www.aquaticrentalsvi.com/