I didn't know that about sand and clay? hmmmmm....something to look into.
It will never be what you have, you should see the difference between now and 8 years ago.
They always told me to go easy on the chicken droppings, because it would burn it up. I kept asking, how much is too much and wouldn't get an answer. They spooked me, so I went too light.
I pile the poop on thick and direct now. They like it.