RE: Some questions on lines
I haven't flown CL for many years but do remember seeing the lines during flight, and they did not touch each other, so where does the friction come from? or are you referring to the situation after a loop for example when they twist around each other?
Anyway I'll probably go for a simple no-throttle profile fuselage trainer first, just to get back into this, then build something a little more elaborate with throttle control.