I have a new M126GX with electronic draft control. It doesn't appear to do anything no matter what sensitivity dial is set to or even if draft switch is turned on or off. The manual kind of implies that draft control doesn't work when 3 point control is all the way down in "float" position, but it doesn't define what float position is, just a diagram indicating it is at the bottom of the control. I understand this is a lower link sensing system; the sensor must be buried inside the tranny case because there is nothing on the exterior sensor-wise. This would apply to any of the M100GX series and probably the previous series too, the M100X. Any experience using draft on these tractors? Thanks.