If you do a Dive and Drive approach you dive to around 500ft agl (typical NPA MDA) and then drive towards the MAP peering out of the window for a sight of the runway. You see it and and dive towards the runway, with a potentially dangerous rate of descent, risk landing deep and running out of runway.
In actual fact, this is totally
not in agreement with our ops.
We start an 800 ft/min descent at the final fix (and if landing straight in, select landing flaps, which includes DLC, as noted before by another poster), level off at MDA and look for the runway.
If it is not in sight until close in, we don't 'dive' for said runway, we don't land long, we go missed approach.
However, if the runway is in sight at a reasonable distance, a normal descent is commenced toward the runway.
Quite simple actually, IF you know what you are doing.
Clearly many here don't, therefore I would suggest that they stick to CDA.
In the L1011 however, it works like a charm.
No problems whatsoever.