Yep, I did CAPD in 1980-81, then switched to the cycler in about mid-1981. I didn't spike the bags myself, as I was 6-7 at the time, and there's no way I would have had the strenght...heck, Mom barely had the hand strength for it! But I clearly remember the cloth and velcro pouch that CircleN mentioned.
Honestly, I wouldn't have been able to tell you until reading peleroja's post that the bag I had taped to me was used as the drain bag the next time. I could tell you that we had to wear a mask during the whole exchange though, not just while hooking up; and whichever parent did the exchange for me had to scrub up to their elbows with Betadine and dry with paper towels.
As the old cigarette ads used to say...You've come a long way, baby! And thank goodness they have!