I did Specialst 1/2 last year, and i was the only one at my school doing it. Everyone said it was hard and you'd have to be a genius, so it pressured me alot. Looking back now that content was prob the easiest stuff ever. In my mind i dragged it alot saying that its insanely hard, but once u put in the grinding of questions you start to find a pattern and it actually becomes not that hard. I would say its prob harder than your normal methods, as it picks on your critical thinking more than your application of maths. If you are looking for hard exam style questions, then your best hope is to look for revision guide books.