It does all seem rather weird to use such an exact '3 degree' glideslope, and I have never taught this to ANY of my students. My advice: take your eyes off the approach aids and learn to fly using the runway perspective and the threshold as references. What are you going to do later on when you can't judge your glideslope on a short grass field in the middle of nowhere, because there were no approach lighting aids available? Please, fly practically.
Kermie
