Pardon me for that, Mr Burk. I'm mostly a hobbiest, but also something of a calibration nut. If you put an instrument into my hands, by nature the first thing I'll invariably do is open it up and calibrate it. Frequency generators, scopes, tape recorders, camera, light meters... If it is something that can be calibrated, I'm bound to calibrate it. Can't help myself.
Ah, and pardon me too noacronym. I know that calibration is good and helps to establish credibility.