Thanks Silentmodeler! I'm glad you like the Wright Flyer.
Your Flying Tiger looks fantastic, the weathering is incredible. Looks very much like a well-used combat veteran!
As for the cable, what I'd use is thick CA glue to attach it to the model. That tends to be stronger than Testors glue for something like this. Also, in the wings where the cable attaches, you could use a pin vise to drill a small hole to insert the fishing line and glue into place, if you haven't already. If the fishing line is nylon, one way to tighten it up is to heat up a blade in a flame and the move it near the fishing line. The heat coming off the blade will make the fishing line tighten right up. Be very careful though that you do NOT touch the line with the hot blade, and pull it away from the line once the cable is tight enough. Otherwise it may tighten up so much that it pulls right out of your connection points.
Keep building 'em guy! You're doing excellent!