Hi Nathan,
We ran into a similar issue with one of our fields. In our case, the text field was a rich text field. When looking at the field content using the developer console, the text has paragrap tags around it. Like this:
<p>Commment</p>
In our situation it was field on a separate line of the table. We were able to resolve / workaround the issue by setting a negative value for the "Top Margin".
Sven