OK, I have a question... Stewards posted a pic of his lawn where he cut out a square to show what his soil looked like. The roots looked, and I think he mentioned, about 1'. The humus, I believe is what he used, was only about 1-2" deep. So... my question is what good is the humus/compost if the roots go a good 10" below where it stops? I know that topdressing is good for situations like mine where there is sod put down and there is no way the customer is going to let you tear it up but I was just wandering what yall thought on this.