I have a 3 acre lot, with a row of trees on the boundaries of each side, and the house in the center. The trees and the lot are basically square (perpendicular) to the roadside, however the house is about 2 feet off center, compared to the trees. Initially I thought I would mow it with the stripes lined up with the house, as the house is what you notice first, but if I do that, the stripes by the trees will look as if they are mowed slightly diagonal. So should I use the trees or the house as my reference point for starting to mow? Any opinions on this would be appreciated.