MHK
Guest
cnidae:From what I know it changed about a year or so ago. It would be best if one of the instructors would chime in and verify it.
Every instructor has a wide degree of latitude in terms of information to present. One of the things about the DIR-F class is that we try to keep it fluid and we try not to stagnate so some classes may get the 120 rule as a value added benefit but as a general rule of thumb the "quick" methods of computing deco on the fly are reserved for the upper level classes.
Hope that helps.
Regards