I have R1 ag tires on all my tractors and as for tearing up the turf, I think it is geometry of the machine. MY Yanmar will tear up the turf in a sharp turn because of the way the tires tilt in a turn. MY new LS doesnt tear anything and just tracks around in a tight circle. This is at low speed turns, high speed turns will all gouge out turf. The LS does leave bar tread marks in soft ground due to the 7000+ weight. Most tractors I have driven steer just like the Yanmar with the outside tire in the turn, digging in due to the way the axles are set. IF you look at the front end of most tractors the fronts are toed in a lot and cambered significantly narrower at the bottom compared to the top, that is why they dig so much on a turn.