The announcer at the track will mention sea level and elevation, especially at the mile high drag way. Reaction times, win or loose races, if you are a sleep at the lights. Reaction time is the time it takes you to move off the line, then start the clock. Everyone knows that, I was referring to a good reaction time that he reacted to start the clock, not to say it was included in his ET.
You can bet the race car drivers at the drag strip know where they are and at what altitude to tune there cars. I will admit I personally want to know If a mill is on a dynamiter that it has been corrected to sea level the HP & TQ. numbers. Especially when I might purchase $750.00 dollar tuning kit and through out some big fancy performance numbers to sell there software. I want to know everything there is to know about the product.
Personally I do not care what altitude it was dynode at, or the forecast, time of day, and or what rpm per second the drum was set up to read the number's, even the gears used to it with, which if not interred into the equation, tells you nothing. I'll put it like this, If the mill is on a stand hooked to dynamiter, and done sitting sideways or adjusted for a front wheel drive, all the other variables will already be compensated for in the computer that's used on a Dailey bases.