Had the Headroom Max improved?

Has the Headroom max impproved significantly in the last few years from the new changes implemented? Also, what is the benefit of the new stepped volume control. Thanks in advance for any comments.
A few days have passed, and still no takers on this question. I'm afraid I am not qualified personally to answer, not having the requisite listening experience with this headphone amp. But I would suggest that you try this same post on head-fi.org. That is the "reference" site for all things headphone related, whereas Audiogon is for everything else.