The condition of the points is very important: often the subsoiler fails to give good results due to the condition of its points. Points can be fitted with horizontal wings, about  wide, which considerably increases the width of soil below ploughing depth loosened by the subsoiler. These plows are sometimes equipped with a torpedo-shaped attachment for making subsurface drainage channels.
The condition of the points is crucial: frequently, the subsoiler does not produce satisfactory outcomes because of the poor state of its points. Points can be fitted with horizontal wings, approximately  wide, which substantially enlarges the soil loosened by the subsoiler below ploughing depth. These plows sometimes have a torpedo-shaped attachment for creating subsurface drainage channels.