I honestly have no idea what type of tests they will accept to just get you on the plane. The risks that I can think of offhand are that (1) they will change the rules AGAIN and if you don't have a test falling exactly within their parameters, you will not be able to fly; (2) once you are quarantined upon arrival, there were reports in the Daily Herald of people waiting FOUR DAYS for the results of their test taken on island. Can't imagine spending 4 days of my vacation in quarantine (3) of course, the risk of a positive test (OR a false positive test) while on island.