This sounds exactly like the argument I had with my boss when this part of the test was added a few years ago, he was adamant that he had been told otherwise during his refresher course. The problem is the manager also whent on the same course at a later date and was told something different!
I agree with you entirely and admit my post was misleading! Apologies, I was just trying to give some friendly advice as unfortunately the general consensus from other testers I've spoken to is that they need to be fitted. I don't know weather it's down to the old training scheme or just what. Luckily the VOSA are now the DVSA and the training scheme will be changing to a private firm (the last I heard)