MY STL and ETL's encourage the team to "demonstrate courage" by challenging upwards when someone is quoting best practice incorrectly. Guess I got luck with a good leadership team
If you do most of your batches in half the time (which is possible - I've seen it done in my store) that one last...
Eventually you will learn which batches are likely to send you to the steel and save those for last. Also, if x'ing out of a batch in the steel gives you enough time to finish two or three other batches before they roll over I'd say its a good idea