Trailer wheel balancing question.

answer I got from tredit tires : The other part about balancing is that these wheels are lug-centric and not hub-centric. That is, the wheel is centered and balanced based off the torque of the lugs on the axle, unlike automotive where it is centered by the hub bore and held in the middle. This allows for changes in balances and makes it difficult to zero in on a balance. Also, many other styles of trailers are now going to aluminum wheels, so there are landscape trailers, utility trailers, cargo trailers, etc. . . that consistently have different loads that will cause wear and tear on tires that a balance isn’t going to change. Many assume balancing will even out any vibrations, but again most of these problems stem from uneven loads.