In an attempt to rectify bare and thin spots in a 1/2 acre section of my lawn, I plan to rent an aerator and top seed this area. Does a "plug type" aerator work better than a spike type or "slice type pull behind " for this purpose? Does it really matter? Has anyone used an areator for this purpose and how were your results. I am in Michigan and was wondering if it is to late to do this now. Please advise and thank you for your time.