In almost all cases the manual cleanup of sliver polygons made no appreciable difference in the position of the county line or section lines (less than one meter). There are three areas to note, however, where some editing had to be done to the original position of the polygon boundaries. The most significant was along the "Third Correction Line" (between Towns 20 and 21 North). Starting about mid-state, there was an ever-widening gap working westward to Lake Michigan between the counties north and south of the Correction Line (Clare, Osceola, Lake, Mason, Missaukee, Wexford, and Manistee). The gap was quite narrow in the interior, but widened to as much as 20 meters by the western Mason/Manistee boundary. The southern boundary was 'pulled up' to the northern boundary in this case.
A second area of revision were those areas where the county line follows a natural feature and splits the surveyed sections (Charlevoix/Emmet, Antrim/Grand Traverse/Kalkaska, Cass/St. Joseph, and Monroe/Wayne). The quarter/quarter section lines were fairly close in the northern cases, but larger adjustments had to be made in particular between Monroe and Wayne Counties. Where these edits were done, reference was made to the DOQs to maintain the integrity of the section lines as closely as possible.
Finally, Section 36 of Town 42 North, Range 34 West in Iron County was missing from the source shapefile and had to be added manually; again, based on the DOQ for the area.