Absolutely agree. Now that I have seen the affect of two axis still running. Problem with using the enable line is that it fails very quietly. I only figured the problem out because the z-axis status LED on the stepper drive was solid and the other two blinking (status enabled and ok). I blew all the cr@p off the limit switch and all three LEDs started flashing. I had lost z position and tried to save the job but forgot to home the z again (after clearing the fault). Suffice to say it all ended badly.