For the most part, I agree with the sentiments posted in this thread. I agree that the training is a good and necessary thing, but I also agree that Senior Techs should have no problems reading meters - even unfamiliar ones.
That being said, I also know that I have been on the wrong scale without realizing it at the time. I also have forgotten that some meters have two probes - the one in your hand and the one inside the case for the highest range. I have seen Techs that I have an immense amount of respect for (and trust in) misread a dual-scale meter on occasion. Based on my 30+ years of experience, I can't imagine that any of us haven't misread a meter (see the above examples) at one time or other.
Perhaps I'm just a fallable old guy, but I'll take any refresher the employer or client wants to push my way (while always reserving the right to complain, of course).