* this is C_{u1|2,3} with <la^3 th^5> = 1

	L Tu123 =
       + 1/640*gmn1(k2,k2)*e2.e3*ap^-1
       + 1/640*gmn1(k2,e2)*k1.e3*ap^-1
       - 1/640*gmn1(k2,e3)*k1.e2*ap^-1
       + 1/1280*gmn1(e2,e3)*ap^-2
       - 1/640*bmnp1(k2,e2,e3)*i_*ap^-2
      ;