Vets, Doctors, Dentists, Lawyers, Chaplains, Nurses, Nuclear Engineers and SF
Pretty sure that the SF Spec pay is only for those in the ranks. Ruperts didn't qualify back in the day.
It did p*ss off our Regimental Pay Staff Sgt that I earned more than him as a TA Corporal. I explained if he'd like to do Selection, para course plus a few other bits and bobs ( and an annual CFT) he too could be on my pay band. He declined.