^^A full moon only occurs approximately every 29.5 days, so the only time you'll get two full moons in one month is if it's at the beginning of the month and the end of the month; never two days in a row. It might look full, but it's actually in the process of waning, so it's not fully full.
Didn't work for me! Bummer lol Didn't work with DD either a couple of years ago.