A more than fair point about the different arduous courses.
I remember the front cover of a Globe & Laurel magazine circa 1988 with a picture of a Para Reg Major on attachment to 3 Cdo Bde who had undertaken and passed the AACC and was wearing a green beret with black Para Reg cap badge.
I know a few Engineers and Gunners who had done both courses in their time too - in fact for some time in the RE, so I was told, officers were almost frowned on if they had not completed one of the other. And this included some of the ATOs who I thought had earned their place alongside the RLC operators.