Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control.
Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass?
TIA for your responses.
R1