We've done the "approval" thing many times over the years and it's usually something that we do right after we make a stupid mistake, it goes on for a few months, then we see that we waste about an hour per day waiting around for me or my artist (I don't trust my current artist to approve anything) or the former GM here (currently a sales person/scheduler) to approve a print. The busier we are the more I may or may not be sitting around waiting to look at a print. I'd love to do a cost analysis on this because we've made one mistake this year that cost us any significant time or money and that was the other day. So is it worth it to lose several hours a week of waiting around or just deal with one or two bad mistakes per year. Don't get me wrong, on tougher jobs, multi-colored/specific pantone color matches we absolutely get an approval from myself before we run, but on a one color back print typically it's left up to the crew to make the right choice and read the Work Order. I do agree that there needs to be at least 2 people that are checking things like this at all times, and I've been the main person that takes on the responsibility as well it should be, but I can't even begin to explain just how busy I've been since we've virtually doubled in size over the last 2 months.
Wish I had more time to talk about this, but my printer has gone to Mexico and who knows if he'll ever be back. I am currently training both new guys to run the press.
