A lost-wax method of casting a product, comprising: attaching temperature control elements to a wax assembly, wherein the temperature control elements include thermal sink elements (100A1-100A5) that are steel blocks of different sizes and insulating elements that are ceramic with a lower conductivity than the remainder of the ceramic mold, and the method includes: attaching the thermal sink elements (100A1-100A5) to a part pattern section of the wax assembly, including side, front and back surfaces (125A, 125B, 125C) of the wax assembly; positioning the thermal sink elements (100A1-100A5) closer to first portions of the part pattern section of the wax assembly than second portions of the part pattern section of the wax assembly, wherein the first portions are thicker than the second portions; attaching the insulating elements to a sprue pattern section and gate-land pattern sections of the wax assembly; encasing the wax assembly and the temperature control elements in a ceramic mold; removing the wax assembly from the ceramic mold; filling the ceramic mold with molten material to form a cast part within the ceramic mold; and separating the ceramic mold and the cast part from each other. attaching temperature control elements to a wax assembly, wherein the temperature control elements include thermal sink elements (100A1-100A5) that are steel blocks of different sizes and insulating elements that are ceramic with a lower conductivity than the remainder of the ceramic mold, and the method includes: attaching the thermal sink elements (100A1-100A5) to a part pattern section of the wax assembly, including side, front and back surfaces (125A, 125B, 125C) of the wax assembly; positioning the thermal sink elements (100A1-100A5) closer to first portions of the part pattern section of the wax assembly than second portions of the part pattern section of the wax assembly, wherein the first portions are thicker than the second portions; attaching the insulating elements to a sprue pattern section and gate-land pattern sections of the wax assembly; encasing the wax assembly and the temperature control elements in a ceramic mold; removing the wax assembly from the ceramic mold; filling the ceramic mold with molten material to form a cast part within the ceramic mold; and separating the ceramic mold and the cast part from each other. attaching the thermal sink elements (100A1-100A5) to a part pattern section of the wax assembly, including side, front and back surfaces (125A, 125B, 125C) of the wax assembly; positioning the thermal sink elements (100A1-100A5) closer to first portions of the part pattern section of the wax assembly than second portions of the part pattern section of the wax assembly, wherein the first portions are thicker than the second portions; attaching the insulating elements to a sprue pattern section and gate-land pattern sections of the wax assembly; encasing the wax assembly and the temperature control elements in a ceramic mold; removing the wax assembly from the ceramic mold; filling the ceramic mold with molten material to form a cast part within the ceramic mold; and separating the ceramic mold and the cast part from each other.