Thanks for the info Dave....I didn't realize what you pointed out as to the CA hinges breaking if not installed perfectly parallel....one thing I noticed on the Robarts is that they seemed extremely stiff....the CA hinges seem to allow for much easier movement and less strain/work for the servo....but maybe the extra stiffness is not really an issue? I also wondered about what you pointed out - that on smaller planes, especially with just sheet balsa for the tail surfaces, whether there was enough thickness in the balsa to allow for the size of hole required for the hinge point....

Thanks again for the info!