CA Hinges are much too stiff for 1/2a control line flying you will likely have little if any control. CA hinges are poor hinges for RC too but most of us are spoiled with their ease of use and besides the servo has plenty of torque, Right?

You need hinges that are absolutely free, the surface should fall to it's full extreme just with it's own weight.

Try hinging with monokote, fabric hinges, sewn hinges or if you can find any old 5 1/4 inch floppy disks you can remove the actual mylar media and cut it into strips to use as hinges. The mylar takes CA well and is very free, many use them for small electric planes.