Its not 100%, even if its higher chance than others.

Also desynthed 20 + 2 carbuncle chronometers.., mainly for fieldcraft IIIs and only got 1 from the 20 and one double from one of the other 2 I crafted from returned mats..

Bloody hell. Still doing Spicy tomato relish and getting better result but still not enough for all 11 supras, argh