Spesh is not as monstrously difficult as everyone makes it out to be. In my opinion, sose subjects are harder to do well in because of the pathetic cohort they attract (not generalising or trying to say anyone who takes it is a dumbass, but in my school sometimes this proves to be true). Also, because of the way you have to answer and memorise things for health and human development as seen from my friends' experiences, I'd say it is fairly difficult than something like methods where you can answer with a number and be sure it's 100% correct.
Back to specialist- for those comfortable with methods, particularly calculus, it's not THAT hard. Of course, if you're a weak maths student, any "advanced" maths is difficult. But I find it's so unfair on the other students, who do humanities subjects, who suffer occasional social snobbery because they picked such a subject, and who suffer lower scaling, and who are already on an uphill battle sometimes to do well yet when they do get a 40 for it just get the "Oh but that's because they did THIS subject" dismissal.
Specialist kids, on the other hand, get nice scaling (compared to humanities subjects, yessss I know +9 seems to suck), and if they had a stable maths foundation, isn't that bad to get 30-35 in.
Personally, I've always thought of myself as "lucky" that I liked to do subjects that scaled up and enjoyed maths.