Hey, just to share my experience - I wouldn’t worry at all. I had never done Amberjack before and I’m bad at maths. But I found it actually fairly easy! I think the test is much easier than the other SJT test (that I can’t remember the name of) other firms use. There is also no VI question which is niceI'm yet to sit mine but have never done a SJT before how did you find it haha and also was the maths hard? Also would assume if you got high on most then hopefully it will balance out. Best of luck.
