Pat,
It's as DMc stated that the 'pull' is to the left especially on tail-dragger's. You can test the in-flight affects of torque by pulling your plane straight up as it's flying away from you. If it does not fall off toward the left wing, then you have the correct offset and rudder trim. If the plane wants to roll, you've corrected torque with the ailerons. Once again, it's not critical on sport and trainer planes as it is on pattern or IMAC.