JD X585 owner
You definitely want to check your actual blade height. Also, in cooler weather, 3 to 3.5 inches is the height recommended for cutting by most lawn specialist. Higher in hotter weather to allow the grass to throw more shade on itself.I haven't measured the blade tip from the ground surface but I did check the tire pressures when I leveled the mower after I got it. I guess they could be a psi high now that it has warmed up a bit more.