That's funny, I mow the same way.Yesterday I gave my daughter a lesson in mowing Joe’s way. I mow East West one week, North South the next. I start at one corner of the yard and make two passes around the yard blowing the grass away from the house, flower beds, and neighbors. I was on my X540, and she was following me on the X500. I set both decks at 3 inches. My deck looked like it was brushing the top of the grass, hers was high enough your foot could slide under. The cut was perfectly matched. I have never looked at the model numbers on either, both 48”. I’m assuming they are two different models? Question is why does one look so high, the other so low, but both cut right on the number?