"The truth is, of the 80 or so we have done so far, there are none (0) that I would like to revisit."
, is that still true? Because I think that there's a lot of material in some jobs that we've only seen for 20 minutes, I for one wouldn't mind seeing a job again that I haven't seen in several years, and some of them probably look completely different if you go back. Off the top of my head, disaster clean up. I doubt that they spend all of their time cleaning up after exploded toilets.
Most re-visit episodes don't hold much appeal. The only successfull show that revisits old topics, in my mind, is actually Mythbusters. I do agree, however, that this could be a good idea for DJ, because as stated, some of the jobs we only saw for a short segment. There would be a lot of new material at an old job.