On sealing hinge gaps, David Cutler said:
True, but on a trainer, there are better things to worry about!
True the vast majority of the time. But I've seen some amazing things show up at the field, including hinge gaps over 1/8"
Back to contorl throws,
new2this, some airplanes have a threaded rod that sticks up from the control surface, or a threaded torque rod instead of the plastic triangle with holes in it. In that case, you would "screw in" the plastic bit to increase the throws.