I would compare the width of the tractor to the width of the unit. I would not buy a rotary cutter that doesn't cover the track of the tractor myself. I want to have a little reach and I don't want to have to overlap tire tracks on every pass. That is why I went for a MX6 even though that is not recommended for my tractor (they list LX5, LX6, MX5). I also do brush cutting with it. If I was just going to be cutting fields I would have no problems going with the LX.