I found a 8 year old snapper 42" ztr with a 15hp kohler locally. The thing looks nice in person. It has the joystick control which i know nothing about. It wonders to the right when trying to go straight and it doesn't like to turn left. It feels as if the left hydro is always on a bit. Like it needs an adjustment. i have just under 3 acres to mow and I need something inexpensive to get me through a few more years. Do you have any opinions on this mower?