Last couple weeks I have had a lawn or two that looked brownish after cutting, as if the deck were too low. Shrugged it off as grass not completely out of dormancy. Today after the same deal I checked my deck and at the 3 inch setting, the blade was TWO INCHES from the concrete. Dealer never did set it up correctly, and I haven't discovered this for 2 years... Amazing I didn't lose customers, but the issue didn't show up on all the lawns. To make matters worse, this is the 60" Z, as you all know wide decks are already prone to scalping even when the height is correct. Today it was a brand new residential account. I called the customer, explained what happened, apologized and gave them a 100% discount. Lucky for me, they were very understanding and are ok with it all... Shame on me for not checking this myself. Don't trust the dealer to do it right. What's the proper pitch for deck setup? And where do you measure it? I assume the bottom of the deck skirt on front and back?