That's true enough and a good poiint. If you get the high-rates deflection called fo in the plans/manual there is no need to go further.

A pre-flight of any model should include a good tug on every control surface. Better it should come loose in your hand than at 400 feet.

If you do a high-speed low pass and hear a loud buzzing from the model . . . land. Aileron flutter kills. THEN you might want to realign and rehinge.