Inconsistencies in Psalm Punctuation.

This may seem a trivial thing, but:

As part of the typesetting I do, I of course proofread my work against my source. However, when it comes to the psalms, I have noticed that different sources will punctuate the psalms differently. Books like the Liber Usualis may even punctuate the same psalm several different ways. The solution would seem to be to pick one source and stick to it, but most chant books do not have all of the psalms I need, as they do not contain a full night/day psalter the way the breviary does.

The problem with using a breviary is that although it has the asterisks to mark the middle cadence, I have yet to see one with the flex marked. I suppose I could use a breviary for the text, and musical books for the asterisks / flexes.

But of course, even with chant books, I have seen variances in the placement of the flex, and even of the asterisk.

One way or another, I am sure I will be able to come up with some sort of solution that will satisfy me, at least for a while.

However, does anyone know anything else useful about this issue?