I am running a Gecko 540. I ran a wire to Input #4 and another to -V then clicked on Config-Ports and Pins-Input Signals. There I enabled Probe, changed pin# to 13, Changed active low to green check. At this point I am manually touching the wires together after clicking on the Z button in the Automatic Tool Probing screen. As Z axis moves downward I touch the wire together and it makes a rapid movement down an additional 1/2" or so before moving up. What do I need to do to correct the move down after the wires have been touched together?