From what I can see, in this particular case OP wants try to get rid of the “misalignment” mark on the bottom half of the part. First hundred layers are always overly compressed so that a model sticks to a build platform. The line on the model denotes where this stops and the layers that go thereafter are not compressed as much as the first ones. Usually it is on 5-6mm mark from the build platform. The line will still present as long as the model is located close to the base, no matter how the model is oriented.