Paul,
I just found your site a few weeks ago, and it has my name written all over it. We have very sandy soil, and I don't want to chemically kill the grass, till it and attempt to fix the soil. So I tried your two foot hole method. I dug one hole in each side of the yard and filled it mostly with compost and what actual soil we could salvage. It has been two weeks and I didn't feel like anything was happening, so I bought some night crawlers to add to it. But when I dug into the hole to put the worms in, there were all kinds of new grass roots growing in there. Something is working! Thanks for the help and I'll keep you updated.
