If you want to do it "by the book", Durock says prefill and embed tape
as a seperate step: pp 6:
http://tinyurl.com/ktrst
http://www.usg.com/USG_Marketing_Con...tion_Guide.pdf
Michael Thomas
Paragon Home Inspection, LLC
Chicago, IL
mdtATparagoninspectsDOTcom
847-475-568