212man - what is easier, fly a level last 1/2nm with the height hold in following the crappy NDB in marginal weather looking for the references or flying a constant descent to 50' above the MDA and then having to initiate the go around?
I don't personally like the full dive and drive profile and we tend to do what I was advocating earlier - the difference between it and a CDFA approach is that you get to MDA and level before the MAPt rather than fly a CDFA to the MAPt.
JimL is most likely to be the guy in the know as far as the 'legality' of how you fly it.