I completely agree that a test from Shoppers will be sufficient - it's the required test and it's signed by the pharmacist.

Coming home, our final couple days are at Scrub. We called them directly and they have someone on site to administer the PCR and have told us results will be to us between 12 and 24 hrs ... so that will work all the way around and they assured us - at Scrub - that we can do the test the morning prior to entering the USVI and we'll be good.