I couldn’t find the answer anywhere on the forum so I make this topic.
Let’s say you are at about 3500ft on the glideslope en there is a aircraft (Aircraft A) in front of you on short final at about 300ft. You are a little bit high on the glideslope and the papi lights should indicate 3 white and 1 red. But aircraft A is a little bit low and it indicates for him 3 red and 1 white. So my question is: When you are high but the aircraft in front of you is low on the glideslope would the papi lights indicate 3 red or 3 white? Or do the papi lights indicate differently for each person?