A continuous process to polymerize olefins comprising contacting, in a polymerization system, propylene with: 1) a metallocene catalyst compound, 2) an activator, 3) optionally comonomer, and 4) optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1000 MPa, where the polymerization system comprises propylene, any comonomer present, any diluent or solvent present, and the polymer product, and where propylene is present in the polymerization system at 40 weight % or more, wherein the metallocene catalyst compound is represented by the formula: where M is hafnium; each R 1 is independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, amide and halide and any two R 1 groups may be linked; each R 2 is independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl, and two or more R 2 groups may be linked together to form an aliphatic or aromatic ring; each R 7 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl; each R 8 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and R 7 and R 8 may be linked together to form an aliphatic or aromatic ring; each R 9 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and two R 9 groups may be linked together to form a ring, R 9 and R 8 may be linked together to form a ring, R 9 and R 16 may be linked together to form a ring, R 9 and R 11 may be linked together to form a ring; c is 0,1 or 2; R 10 is -M 2 (R 16) h - where M 2 is B, Al, N, P, Si or Ge, h is an integer from 1 to 2, such that the valence of M 2 is filled, and R 16 is hydrogen, hydrocarbyl or substituted hydrocarbyl, and two R 16 groups may be linked together to form a ring; d is 0, 1, or 2; each R 11 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and two R 11 groups may be linked together to form a ring. R 11 and R 8 may be linked together to form a ring. R 11 and R 16 may be linked together to form a ring; e is 0, 1, or 2; where the sum of c, d, and e is 1, 2 or 3. 1) a metallocene catalyst compound, 2) an activator, 3) optionally comonomer, and 4) optionally diluent or solvent, M is hafnium; each R 1 is independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, amide and halide and any two R 1 groups may be linked; each R 2 is independently selected from the group consisting of hydrogen, hydrocarbyl, and substituted hydrocarbyl, and two or more R 2 groups may be linked together to form an aliphatic or aromatic ring; each R 7 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl; each R 8 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and R 7 and R 8 may be linked together to form an aliphatic or aromatic ring; each R 9 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and two R 9 groups may be linked together to form a ring, R 9 and R 8 may be linked together to form a ring, R 9 and R 16 may be linked together to form a ring, R 9 and R 11 may be linked together to form a ring; c is 0,1 or 2; R 10 is -M 2 (R 16) h - where M 2 is B, Al, N, P, Si or Ge, h is an integer from 1 to 2, such that the valence of M 2 is filled, and R 16 is hydrogen, hydrocarbyl or substituted hydrocarbyl, and two R 16 groups may be linked together to form a ring; d is 0, 1, or 2; each R 11 is independently selected from the group consisting of hydrogen, hydrocarbyl and substituted hydrocarbyl, and two R 11 groups may be linked together to form a ring. R 11 and R 8 may be linked together to form a ring. R 11 and R 16 may be linked together to form a ring; e is 0, 1, or 2;