I live in Mexico, by any means quite tropical. To get Passion Fruit is very difficult. I went for the giffard syrup, but I sense it more sweet than fruity. Nevertheless if not the full 15 ml, but instead just a bar spoon, I find it delicious. Go with less syrup and make a Saturn Perfect. I asked the IAs and gave the full Solar System recipes. I recommend you try. From Mercury to Jupiter, Saturn and Uranus with no 'albur'