That is how I had always learned it, but then my VBM came tuned to 11.4 indicated. Now, indicated is not actual, but I wrote to ask why it was so high (they say indicated is usually apx. 1 bar over actual), and the answer was, "That is how we like it here in Italy," or something to that effect. Well, I tried tuning it to 9 bar act., but did not like the results. I like the results I get now. I have now accepted: Numbers are for general reference; taste is the ultimate standard.