A supported catalyst system comprising: a bridged group 4 metallocene compound; an unbridged metallocene compound; a support material; and an activator; wherein the bridged group 4 metallocene compound is represented by the formula (A): wherein M* is a group 4 metal each R 1 , R 2 , and R 4 is independently hydrogen, an alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group; R 3 is independently hydrogen, an alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group, preferably a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, or is -R 20 -SiR' 3 or -R 20 -CR' 3 , wherein R 20 is a C 1 to C 4 hydrocarbyl group, and each R' is independently hydrogen or a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, provided that at least one R' is not hydrogen; each R 7 , R 8 , and R 10 is independently hydrogen, halide, alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group; R 9 is -R 20 -SiR' 3 , wherein R 20 is a C 1 to C 4 hydrocarbyl group, and each R' is independently hydrogen or a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, provided that at least one R' is hydrogen; T is a bridging group; and each X is, independently, a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand, provided that the bridged metallocene is not symmetrically substituted; and wherein the unbridged metallocene compound is represented by the formula (B): Cp m MX q (B), wherein each Cp is, independently, a substituted or unsubstituted cyclopentadiene, a substituted or unsubstituted indene or a substituted or unsubstituted fluorene, M is zirconium or hafnium; X is a leaving group, preferably a halide, a hydride, an alkyl group, an alkenyl group or an arylalkyl group, and m=2 or 3, q=0, 1, 2, or 3, and m+q is equal to the oxidation state of the transition metal, and each Cp and X is bound to M. M* is a group 4 metal each R 1 , R 2 , and R 4 is independently hydrogen, an alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group; R 3 is independently hydrogen, an alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group, preferably a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, or is -R 20 -SiR' 3 or -R 20 -CR' 3 , wherein R 20 is a C 1 to C 4 hydrocarbyl group, and each R' is independently hydrogen or a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, provided that at least one R' is not hydrogen; each R 7 , R 8 , and R 10 is independently hydrogen, halide, alkoxide or a C 1 to C 40 substituted or unsubstituted hydrocarbyl group; R 9 is -R 20 -SiR' 3 , wherein R 20 is a C 1 to C 4 hydrocarbyl group, and each R' is independently hydrogen or a C 1 to C 20 substituted or unsubstituted hydrocarbyl group, provided that at least one R' is hydrogen; T is a bridging group; and each X is, independently, a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand, provided that the bridged metallocene is not symmetrically substituted; and wherein the unbridged metallocene compound is represented by the formula (B): Cp m MX q (B), <EOS>