Remember when you had to feel the grade? That old Cat D6 in '95 taught me.
We were clearing a site outside of Flagstaff, and the laser level box on the blade just went dead. No warning, just a blank screen. I had about 200 feet left to cut to spec. My foreman, Mike, just yelled 'You got eyes, don't you?' from the truck. So I shut the cab door to kill the noise and finished the pass by watching the fall of the dirt and the shadow line on the stakes. It came in within a quarter inch. Anyone else have to finish a job the old-school way when the tech quit?