Avalanche,

The direction of engine thrust line offset is always referenced from the pilot's seat. So, what you have is right thrust. The reason for the right thrust has to do with P-factor, torque, spiral slip stream over the vertical tail, etc. Remember, right thrust is only a good thing when the airplane is right side up. If it's in a vertical climb or inverted, right thrust can actually compound the effect you're trying to minimize. That's why most acro planes have a zero thrust line.

Paul