hey yall, there is a 15 by 30ft space in the back yard where the dogs have dug many holes...will the tiller hurt driveway if you drive on it/what about stone cause this is the access space. Then i plan to smooth it. What types of Fescue do you recommend? Then cover with straw. Plan to aerate the yard and overseed. Is it to late to put preemergence down. Will i put the preemergence down first or last. Will the aerator damage electric dog fences? Is there such a thing as to much seed (Within means)?