Two boats that I am aware of have had all meat, dairy, vegetable products onboard the boat seized by US customs at Cruz Bay. Makes it difficult for a crewed boat to pick up charterers in the USVI. If you look at the regulations what they are doing is correct. It's just never been enforced before. It also makes jumping over to the USVI problematic for a few days. This would have little impact on your boats returning from the BVI as normally they are ending their charter. It's a big deal if a BVI based boat.
G