Your servo shouldn't scream at you. Make sure you don't have any binding. Check that the surface moves freely (no hinge binding), that the cables don't touch anything inside the fuselage, that they aren't suffering from "stiction" if you have them inside cable guides, and that you don't have any binding where they pivot on the control and servo horns.

Also make sure there's no force exerted on the surface from the tailwheel on the ground or tailwheel springs.