I am perfectly happy to press F repeatedly to get to full volume. The same is not so true of minimum volume - sometimes at night my wife and I fall asleep to the BP reading. If I want to know the time in the middle of the night, I like being able to press and hold the D key, knowing it will jump to minimum volume. I then press the F key just to the point where I can hear our speaker and inquire about the time. So while it would seem natural and consistent to disable the D key's long press for minimum volume if we make the same change to F, this I would prefer you not do.