Row spacing in PDF tables

Hi all,

I've got my tables almost totally perfect. I just have one more question (I hope!). There seems to be some kind of padding or spacing below each row that adds unattractive vertical space between the rows.  I could not find a way to adjust this distance in any documentation. I have decreased the cell padding, but that does not get rid of the extra space between the rows.

I'm using docbook-xsl-1.74.0, saxon 6.5.5, xep

I'll try to illustrate what it looks like:

________________________________
Header Row
________________________________

What I would like:

________________________________
Header Row                                       

Here are my customizations:

<xsl:attribute-set name="table.cell.padding">
  <xsl:attribute name="padding-left">2pt</xsl:attribute>

  <xsl:attribute name="padding-right">5pt</xsl:attribute>
  <xsl:attribute name="padding-top">2pt</xsl:attribute>
  <xsl:attribute name="padding-bottom">0pt</xsl:attribute>

</xsl:attribute-set>

And here is a snippet of my xml:

<informaltable frame="topbot">
        <tgroup cols="7" colsep="0" rowsep="0">
          <colspec colname="c1"/>

          <colspec colname="c2"/>
          <colspec colname="c3"/>
          <colspec colname="c4"/>
          <colspec colname="c5"/>
          <colspec colname="c6"/>

          <colspec colname="c7"/>
          <thead rowsep='1'>
            <row>
              <entry>
                <para>
                  <emphasis role="bold">Header Row</emphasis>

                </para>
              </entry>

Thanks!

Lillian