Greetings,
No body said that you fly your aircraft based on Cabin Altitude
, I said that Cabin altitude is the reference for regulatory authorities because it is what you are breathing
I am always amazed by the way people jump on things, without reading slowly and properly what is writen, I hope you dont do the same thing when you operate
BTW, when the CABIN ALTITUDE warning extinguishes it simply means that you are below 10000 ft
regardless of what you have on your altimeters