RE: Going CL with tis R/C model
I'm not sure you need an adjustable leadout guide. I am all for them on stunt airplanes, so one can deal with problems of low line tension up high. I presume you will be flying mostly straight and level. I think if you put the line guide where the airplane angles out a couple/three degrees when suspended from the leadout guide, it will be fine. One of the virtues of adjustable things is that you can move them around and see what effect it has on how the airplane flies, so I am generally for them. Fred says 25% CG is OK. I am doubtful, but then I have never flown a scale CL airplane.