Hi guys Im building my first RC airplane. 4 channel .40 Trainer ARF. I just finished gluing the hinges with thin CA glue. I followed the instructions perfectly applying 6 drops of CA glue to each side of each hinge, letting them sit for 10 minutes then break them in. But after they have been broken in like 100 times they still seem sorta stiff compared to the pin hinges I have felt in the hobby shop. Is this normal? How much stiffness could the average servo take without strain?