Anyone ever heard of the Jacobson-flare? I've read an article about it a few years ago. Apparently it's being taught Downunder.
If I remember well, it's based on the geometry between the eye, it's height above the main wheels, the angle of the nose in front of the windshield, and the length of centreline markings.
The formula is supposed to produce an aiming point, that can be calculated for any type. By using it, transition to another airplane should be as easy as finding the master switch...
Erik.