I have small patches of crap grass in my lawn. They are just 4 inches by 4 inches big. I tried to dig them up and put new soil and seeds, it was a lot of work. What is the best way to get rid of the patches and reseed. You think use an auger and a cordless drill to drill it out will work? Another idea is: I have the Mantis and edger and aerator tines. What if I use the wheel from the edger on one side and put the aerator tine on the other to make the grinding area small as possible. Put the tine on top of the grass and grind it.