My first stop was just behind our office today. He complained of brown areas. Since grubworms are hitting hard right now, I ran this service call right away. Turns out, he was mowing at 1 1/2 inches and less. High spots were mowed as low as 1/4 inch. He said his John Deere belly mower was set at the highest setting. So we went into his garage and checked out his 54" belly mower. Turns out, his deck was set terribly low....the front end of the mowing deck was set at 1 1/2 inches. The rear was set at 1/2 inch. I ended up adjusting his deck to mow evenly (adjusting the guide wheels as well). Plus, he was NOT on the highest setting that he claimed to be. Anybody else running in to this?