I agree with Speedracer. If the tube is out of alignment it may also be slightly high or low thus affecting wing incidence. Going through and measuring everything to make sure it is square is relatively easy and doesn't cost anything. You don't mention what engine or prop you have on the airplane. A big engine - prop combo can induce torque swing at takeoff. IF everything is in proper alignment then you may need more right thrust or just the proverbial bootful of rudder at take off.