I think this is what the reset_children patch in UVPov is for. It allows 
you to transform the top level of a texture, leaving it's component 
parts(it's children) unchanged.
Other than using that patch, I think this will do what you 
want(untested!):
#declare TestT2= texture {
   cylindrical
   scale <2,1,1>
   texture_map {
      [0.7, TestT scale < 0.5, 1, 1>]//scale this part to compensate
      [0.8, pigment {red 1} finish {phong 1}]
   }
}

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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