The grid-guidelines question hasn’t gotten any easier to answer since Professor Ollivier-Gooch’s observation was recorded in this article. It’s interesting, then, to hear Eduardo Molina on how he decides what grid to use. His talk is worth viewing in its entirety, but don’t forget to catch (at about 3:04:25 in the video) the answer to the question “Are there any guidelines that have evolved for mesh quality metrics?“