I'll post some pics, and pull a core from the common area that is on the spray and pray program. Not really sure how often they spray and pray, but it should be a good comparison for soil under a "similar" irrigation regime. I'd like to pull a core from the guys yard down the street that had a major grub problem last year. Watching him try to figure out what was wrong and watering the living hell out of his lawn was both amusing and a crying shame at the same time. Looks like you might hit that water reduction goal this year.