Always. Adding to "full and free," "in the correct sense." I.e. Looking out, ailerons, left up, right down, elevator up and down.
Trim is an interesting one. Although one can check the mark on the wheel, it doesn't indicate correct movement. A number of years ago after my aircraft's annual, I was trimming nose up after takeoff but the nose was going down. Back on the ground I discovered that the cables had been reversed during the service. I taxied back to the engineer and told him what had happened. He strenuously stated that was impossible until I showed him. Having a sliding canopy, I now stick my head out when checking the elevator trim.