attaching gypsum board to metal vs. wood studs

huangyhg

attaching gypsum board to metal vs. wood studs
it appears that most of the values in the ubc for drywall strength are based on anchoring to wood studs.  i have metal studs in my building, do you know where i can find values for the shear and tension if i attach to metal instead of wood studs?
thanks
in case anyone was wondering, the dynamic fastener catelog page 67 has some comparisons, not a lot, but at least enough to get started.  any other ideas?
the gypsum association has publications that cover this, as well as us gypsum and georgia-pacific corp.
try ibc 2003/06 -  they have values