Aeromodeler,
Unless there is something solid beneath the root of the wing and control surface I don't really see how you will gain by using Robart hinges. The material of the beveled trailing and leading edge are all that you have unless you tear the wing open and install backing inside each surface, which means to me that you are no more assured reliability than with the CA hinges. In fact it would seem that with the hinge point you have less grip on the situation than with a 3/4" wide CA hinge.

Just my opinion