You guys need to remember that this will really only be useful for lower handicaps.
A lower handicap will also aim at the chalk instead of the point on the rail which will result in an incorrect contact point in many cases. This is especially the case if you are at a large obtuse angle to the contact point.
A lower handicap will also aim at the chalk instead of the point on the rail which will result in an incorrect contact point in many cases. This is especially the case if you are at a large obtuse angle to the contact point.