A second or third trip over the scales normally cost $1. I would recommend a forth time with bars engaged and split the axles on the trailer. You may have to have the DW help stop you at the correct location. Do not worry about where everything else is as the first three give everything you need. The forth will let you know if the trailer axles are being loaded evenly. It is worth the extra 10 minutes it would take to go around and do an extra weight. Plus it could be the best value you have ever got for $1.