Elsewhere on this forum, I've described my PX4 D as my "18-shot 4" K frame", so we've got a similar perspective.
I went to the range again today and shot both guns back-to-back, again using the 5-yard round up because the heat index was somewhere over 100 and my antediluvian ass doesn't do as well with heat as it once did, so the shorter walks to the target were beneficial. My scores increased and times and splits decreased as one would expect with more practice, but once more it was a coin toss as to which one shot better for me.
I remember reading one time about 10-15 years ago that Ernest Langdon @
LangdonTactical tried the same thing with 92s and found that for him, at the level he was shooting, the D yielded slower splits. I chalk that up to the huge difference in our skill levels.
I ain't finished with this thing
yet.