I hope it's not an issue in this case, but sometimes the presence of checking authorities in a real emergency can be a serious inhibition, particularly where sticking to the book in fine detail is unwarranted by lack of time or other confounding factors. Often there is an awareness of the checker's idiosyncrasies by reputation that modifies one's instinctive response.
On the other hand, if time is not of the essence, they can be a valuable additional resource. It just depends on the particular circumstances.