Sorry I misunderstood, but I am sure glad I asked. I put the setting back to .33 and it looks better again. So you meant that there should be at least .25 to .5 space between an accidental and the previous note. I will look through my engraving from that point of view tomorrow.I think there's been a misunderstanding. I was referring to the space between an accidental and the preceding note, not the space between a note and it's accidental
I did exaggerate a little for effect. I meant to say that if the bar lines were removed, there would be only a little evidence of their previous existence, but not a lot.there is a tendency in plate engraving to add a little extra space at the end of tightly spaced measures….I would also imagine that not taking the barlines into account would lead to some pretty undesirable results...
Ross actually deals with this and mentions that there is a school of thought that thinks that "no consideration should be given to the bar line in so far as space is concerned, that it tends to isolate each measure and disrupts the flow of music and becomes disturbing." He then goes on to say that he disagrees with this and recommends doing what he says most plate engravers do: one space is allotted before the first note of each measure.
While I tend to agree a little with the school of thought Ross disagrees with, my Finale setting is indeed set to 1 space between the bar line and the first note, cut down from the Finale default of 1.33 spaces.
I looked through the rest of Ross's description of note spacing but could find no recommendation for adding an extra 1/2 space at the end of a measure. He seems to be saying that there is a fixed amount of space for each note in the measure and that if a measure were divided into 6 notes without accidentals, for example, the distance after each of those notes would be the same, which is what I have always assumed.
But you are talking about exceptional measures, ones in which the measure is packed with many notes. Those are just the ones in which the music flows more quickly from one measure to the next, and thus the ones in which I would not want to add much extra space. But I certainly wouldn't want to cram the notes too closely to the bar lines either and would adjust that by eye.
So I think our thinking is pretty much the same, but you might like a little more space at the end of such measures than I.