Best trapsin for pvm/ubers is a kick/trap sin with stormlash or Cmoon (and others), 102 fcr cta/spirit side, and a stashed 2x6ls claws setup.
Pure trap setup: 3trap/20fcr/2sox (cham/firefacet) helm, 3trap/10fcr amu, enigma, 2x6ls claws 4sox: ias jool, firefacets, magefists, arach, bk/bk, shadowdancers, cta6/spirit 35. (102 fcr cta side)
K/T setup: My guide, for example, its dracs and 65 fcr build, but can go with 102 fcr if you prefer.
Both can be mixed in just 1 char.