Not to negate the need to lateral balance. However, there are other forces, such as drag that also enter picture as well as overall alignment of stab, elev.,vertical fin, rudder. the fact that the engine is mounted on an angle and the muffler is also on one side of fuselage definitly changes the center of lateral area as well as drag thereby quite likely requireing some trim to be required. Assuming all flying surfaces are perfectly aligned? I would suggest removing perhaps 1/2 the weight on wing. Trim is there to be used if and when necassary to compensate for a variety of things. Just don't use it to overcome poor alignment or warps.