I wish my success rate with digital calipers was not so abysmal, as I would like to mount them on my lathes and mill to use as DRO, it matters not if they are el-cheapo or Mitutoyo, I simply cannot trust them to have continual repeatability beyond using them a few times. I do know that a lot of the issues I have with them can be contributed to work environment not having a climate-controlled cleanroom type facility