A cage vane (206,208,214,300,510,600,610,700,750) for use with a combine threshing system comprising: a cage vane inner edge extending a cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to a cage vane rear edge (306;506,516,606,616,706) a mounting leg (308,512,602,702,752) configured to be mounted to a cage portion (204,710) of a crop material threshing chamber (16,202), the mounting leg (308,512,602,702,752) (i) extending a mounting leg length from the cage vane inner edge to a mounting leg outer surface (310,720,762) in a first direction; and (ii) extending a mounting leg thickness (Mt) from a mounting leg bottom surface to a mounting leg top surface; and a protruding leg (316,502,612,620) (i) angled from the mounting leg (308,512,602,702,752); (ii) extending a protruding leg length from the cage vane inner edge to a protruding leg top surface in a second direction different from the first direction; and (iii) extending a protruding leg thickness (Pt) from a protruding leg inner surface to a protruding leg outer surface, characterized in that at least one of: (i) the mounting leg length is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); (ii) the mounting leg thickness (Mt) is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); and (iii) the protruding leg thickness is (Pt) configured to change as the protruding leg (316,502,612,620) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706). a cage vane inner edge extending a cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to a cage vane rear edge (306;506,516,606,616,706) a mounting leg (308,512,602,702,752) configured to be mounted to a cage portion (204,710) of a crop material threshing chamber (16,202), the mounting leg (308,512,602,702,752) (i) extending a mounting leg length from the cage vane inner edge to a mounting leg outer surface (310,720,762) in a first direction; and (ii) extending a mounting leg thickness (Mt) from a mounting leg bottom surface to a mounting leg top surface; and (i) extending a mounting leg length from the cage vane inner edge to a mounting leg outer surface (310,720,762) in a first direction; and (ii) extending a mounting leg thickness (Mt) from a mounting leg bottom surface to a mounting leg top surface; and a protruding leg (316,502,612,620) (i) angled from the mounting leg (308,512,602,702,752); (ii) extending a protruding leg length from the cage vane inner edge to a protruding leg top surface in a second direction different from the first direction; and (iii) extending a protruding leg thickness (Pt) from a protruding leg inner surface to a protruding leg outer surface, characterized in that at least one of: (i) the mounting leg length is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); (ii) the mounting leg thickness (Mt) is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); and (iii) the protruding leg thickness is (Pt) configured to change as the protruding leg (316,502,612,620) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706). (i) angled from the mounting leg (308,512,602,702,752); (ii) extending a protruding leg length from the cage vane inner edge to a protruding leg top surface in a second direction different from the first direction; and (iii) extending a protruding leg thickness (Pt) from a protruding leg inner surface to a protruding leg outer surface, characterized in that at least one of: (i) the mounting leg length is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); (ii) the mounting leg thickness (Mt) is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); and (iii) the protruding leg thickness is (Pt) configured to change as the protruding leg (316,502,612,620) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706). (i) the mounting leg length is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from a cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); (ii) the mounting leg thickness (Mt) is configured to change as the mounting leg (308,512,602,702,752) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706); and (iii) the protruding leg thickness is (Pt) configured to change as the protruding leg (316,502,612,620) extends the cage vane length from the cage vane front edge (304,504,514,604,614,704,754) to the cage vane rear edge (306;506,516,606,616,706).