It appears the vertical page allignment of EmbeddedVisualReportSection is center. Is there a way to set it to top?
I have tried using a style with the content vertical alignment set to top but it is ignored.
You should be able to provide a style for the ReportPagePresenter (via the section's PagePresenterStyle property) that sets the Horizontal|VerticalContentAlignment. However, it appears that the template is not binding to those properties currently so you will need to retemplate the page. e.g.
And then set this as the PagePresenterStyle on your section. e.g.