Oh that's not my shop... that's the place I went to today that was selling material for a dollar a poundDavid,
How long have you been stockpiling drops ?
Have you compared the accuracy of the digital to the vernier mic ?
You can confirm them if you have a confirmed test block.
How are the DROs working ?
I had my Starrett calibrated when I had it serviced. It measures all my 123 blocks at exactly 1.0000 and the vernier agrees with that. Pretty happy with that for $25.
I haven't had a chance to mess with the DROs yet as I'm getting set to reorg my shop. Again. I bought casters for my lathe bench so I'll be able pull it out and work on it from the back to do the Z axis scale.