Great memories here. I can relate to so many of your stories!
First, 60's Cox plastic. Yep, more "dragging it around in circles" than flying. As I recall it, it was a feat to accomplish that!
Engine went into Wizards, banshees, baby voodoos, (yeah, me and my brother built the twin kits) I seem to recall a "baby" ringmaster? Wombats, can't recall all the names!
Then I "graduated" to a Ringamaster jr. OS Max 15. Flew the heck out of the thing. Still have it hanging in my workshop.
Don't know if I'd trust the 50 yr old Ambroid to dare fly it. Still have a handle and lines though......
Built and flew many others and went R/C for some years. Visions not so good any more though.