I just left ETAR and we were regulars at the SAAF baseops. I remember one time we had 5 C21s there because of two ongoing missions, two broke jets, and one functional carrying mx.
I was HOOK66. I never knew the CLUE CS was used back in the day. As you are aware, it is obsolete now.
Those last 3.5 years in Ramstein were probably the best flying I have ever experienced.
Tschuss~