IMHO,any NPA with DME should be flown using constant rate.Without it,the dive-and drive is better.Aircraft type also enters into the debate.Latest generation Boeings give you the black-hole approach option which always works out nicely,given the luxury of GPS position updates.If you consider that pilots are notoriously susceptible to get-homeitis,the dive and drive is always worth considering even if a little messier.I dont know how many pilots I've seen scrub a npa because they didnt get down in time.Including myself...