I'm able to hear the same artifacts in the sample sentences you gave.
For some of these kinds of problems, you may be able to work around using the pronunciation editor. For example, defining the phrase "ill-disposed" in the basic pronunciation editor as "illdisposed" (one word) seems to help with the volume increase. It seems like this problem might be related to how/where the word "disposed" is used in a sentence; I hear it in other cases but not all the time.
On the problem with no pause after the colon, you could create an entry in the pronunciation editor to treat colons as semicolons like this:
The & in the word field above is needed to allow characters to the left of the colon. By default, substitutions are performed when the string in the word field actually falls on a word boundary.
I'm not having much luck with the click in the sentence Dr. Smith lives on Yellow Dr. It just seems that something about that sentence is causing a problem with the voice ... If I change it to "Joe lives on Yellow Dr", or add extra punctuation to the sentence, I don't hear the click.
So it sounds like you're running across some problems with some sentence constructs, and about the best you can do is see if you can work around using the pronunciation editor.