That explains my bumpy landings when I'm doing IFR.
True, when you come down to runway height on the dialed-in altimeter, you're still five feet in the air. Obviously any subsequent drop to the ground, after you close your eyes and cut the throttle, is not your fault
Explain me why you would be relying on the iPhone for altitude reading instead of the aircraft instrumentation?
Explain to me where I talked about iPhones. Please look up the word "segue".