I've been doing this a while, but I've never renovated a tall fescue lawn that was on really hard soil. It's my own lawn, and I'm lazy enough not to want to spend any time I don't have to. I really don't want to be manhandling a tiller and hauling dumptruck loads of soil around, which is probably what it really needs. Any tips on a quicker way to fix a lawn that does fine in cool temps, but the hard areas (80% of lawn) fry in the summer? I was thinking a good thorough core aeration on a wet day, then some sort of soil amendment to try to get into the cored areas to prevent it from just re-compacting. Sand? Compost? topsoil? Short of tossing it around with a shovel, how would I get it down? Also, are slit seeders worth the cost/time? For 8,000 ft, what am I looking at in time if I need to till, rake and add topsoil?