In aircraft rigging a simple ball stud fitting is used.
This is adjustable and can be locked. Inexpensive and effective.If one of these pops off when you are flying the consequences are just a little more dramatic than on the Boxster...Hence the locking feature:-).
Low Carbon Steel Ball Joints, Metal to Metal Ball Joints from Cablecraft Motion Controls
With Jakes Helo experience ,I guess the new product will be aircraft derived?