Looking for some opinions from guys(or girls) who aerate/topdress/overseed. 1. On a lawn that's in pretty good condition, after I core aerate, is it necessary to top-dress or can I just broadcast seed after aerating and forget about top-dressing? 2. On a lawns that need a good top dressing, approx. how much material (on avg) should I plan on putting down, say per 1000 square feet? Or how thick, eg. 1/2", 1", 2", etc? I will be aerating a bunch of lawns and I'm basically trying to figure out which places will actually need a top-dressing and which ones won't, and of the places that do, how much material I will need. Thanks a lot for any help.