One thing to bear in mind with the continuous descent is that, if you are not planning to level off at the MDA (and why would you want to in a big jet?), you must go-around from a suitable margin above MDA, to avoid going below it during the G/A.
er....... not always the case anymore. As you may find that DH is published rather than MDA and in this case it should be treated as a DH and a certain height loss below is accounted for in the procedure.