There seems to be some confusion here. In short, a vessel over 30' in length is required to have a US Customs Decal sticker to enter Puerto Rico (including the SVI) or you will have to have to pay a fee, equal to the sticker, when you check in by person. With the sticker, and all persons onboard US citizens, you can clear in over the phone with no additional fees. Regardless of whether you have LBOs or SVRS is irrelevant if you don't have the sticker for your vessel. Entering the USVI from the BVI a Decal Sticker is not required and assuming all onboard have LBO numbers or a SVRS is in play, a phone call can clear all persons in without need to stop in person.