Ouch!!!
Dennis,
I agree about the aerodynamics of the Cox CL planes you describe to some extent, however, I think the Cox RTF planes actually helped get alot of us addicted to powered models. I can only speak for myself. As a young kid, I lived in a town with no hobby shop or active as far as I know model fliers. There was a photo shop in town, (Talladega), that most always had a Cox plane in the window. For me, this was my only connection to models. I can't begin to guess how many of those plastic planes I "Dorked", but I learned many valuable lessons from them, some still in use today!!
Also worth mentioning,,,, I still have many "bones" (engine parts from the planes I owned.
Jimmy