i completly agree with you, but some time service provider may not like it when he sees the request, he may question, why are you keeping different namespace prefix for same namespace.
i wanted to be consistent in the entire soap request that i am sending

  <xsl:template match="soapenv:Header">
    <xsl:copy>
      <xsl:copy-of select="@*"/>
      .....

--
Contact us for world-wide XML consulting and instructor-led training
Free 5-hour video lecture: XSLT/XPath 1.0 & 2.0 http://ude.my/uoui9h
Crane Softwrights Ltd.            http://www.CraneSoftwrights.com/s/
G. Ken Holman                   mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
Google+ profile: https://plus.google.com/116832879756988317389/about
Legal business disclaimers:    http://www.CraneSoftwrights.com/legal