East of the lakes, Cambridge Township lets go of its hills and runs out into Lenawee County farmland, and in high summer the line between a kept yard and an open field is drawn by somebody holding a trimmer. Top Trim Services does that drawing, with mowing, string trimming and edging, week in and week out through the growing season. August is the real test out here: heat, thick growth, and grass that goes shaggy three days after it has been cut. Meeting it on time, so a lawn keeps its shape and its borders stay sharp, is the entire point of the work. The rounds cover Cambridge Township and reach toward Onsted, Tipton, Clinton and Brooklyn.