Will CA type hinges holdup when used in a 40 size fun fly plane set up with 45DEG throws and pull pull. I have used sig easy hinges for years in my other planes and have never had a failure.

I can tell you the blue radio south 1/4 scale hinges and the 10-30 pound ohio superstar ca hinges will without reservation. I personally would not use stock ca hinges, sig..gp and such

CA hinges that are correctly installed on a .40 size plane will hold up just fine. I don't see where pull-pull vs. push-pull would really matter.