Zeroing in a fly wheel cover

[Terry, NJ]

As the title says I'm zeroing in a FW cover and and the surface is too pitted and makes the indicator dance around too much for a good reading. I'm thinking of a laser. I can make a fixture to bolt it to the crankshaft, that's not a problem. I'm using a Starrett "Last Word" and a Etalon and the ball gets caught in the pits. What I need is a laser device to do the reading.
Terry