RE: Right and down trust
Since most of the vertical stabilizer is above the thrust line, you need right thrust due to the above-described effects. However when doing inside maneuvers, a bit of right rudder is also required to maintain your line. You also use a slight amount of left rudder to do outside maneuvers. Most airplanes (beyond the basic trainers) fly quite well doing outside maneuvers as well as inside. The usual deficiency is the pilot and trim set-up.