I'm in a bit of a pickle with one of the quality techns that works for us (the company) over a profile of surface tolerance. I initially submitted something resembling figure 1 (top capture) and quality came back to me saying figure 2 (bottom capture) would be better.
I've never seen ''auto-referencing'' of datum and I don't see the point because it doesn't add anything to the GD&T. I've never seen anything like this in any book, reference or drawing I stumbled upon over my (short) carreer. Are there any arguments to which practice would be best? I'm open to any source saying one way should be the preferred one.