A shuttle for a climbing protection system wherein the shuttle can be connected to a user and is guided along a cable, rope, or other elongate support member as the user climbs and grips the elongate support member in response to the user falling, the shuttle comprising: a frame; a guide structure on the frame and configured to receive an elongate support member and to guide the shuttle along the elongate support member as a user attached to the shuttle climbs; a clamping member mounted on the frame for movement between a free position wherein the shuttle can move freely along the elongate support member received in the guide structure and a clamping position wherein the clamping member engages against the elongate support member in the guide structure to resist movement of the shuttle relative to the elongate support member, the clamping member configured to move from the free position to the clamping position in response to a downward movement by the user attached to the shuttle; a blocking member mounted on the frame for movement between a closed position blocking removal of the elongate support member from the guide structure and an open position where the blocking member does not block removal of the elongate support member from the guide structure; and wherein the clamping member is movable to an opening position from the free position, the clamping member in the free position blocks removal of the elongate support member from the guide structure, the clamping member in the opening position does not block removal of the elongate support member, and the clamping member operably engages the blocking member to move the blocking member from the closed position to the open position as the clamping member is moved from the free position to the opening position; characterized in that the shuttle further comprises an anti-inversion member mounted on the frame for movement between a closed position wherein the anti-inversion member blocks the elongate support member from being received into the guide structure and an open position wherein the anti-inversion member does not block the elongate support member from being received in the guide structure; wherein the anti-inversion member is mounted on the frame to pivot between the closed and open positions of the anti-inversion member; and wherein the clamping member in the opening position engages a first surface of the anti-inversion member to maintain the anti-inversion member in the open position with the shuttle in a desired orientation relative to gravity, and the clamping member in the opening position engages a second surface of the anti-inversion member to maintain the anti-inversion member in the closed position with the shuttle in an non-desired orientation relative to gravity. a frame; a guide structure on the frame and configured to receive an elongate support member and to guide the shuttle along the elongate support member as a user attached to the shuttle climbs; a clamping member mounted on the frame for movement between a free position wherein the shuttle can move freely along the elongate support member received in the guide structure and a clamping position wherein the clamping member engages against the elongate support member in the guide structure to resist movement of the shuttle relative to the elongate support member, the clamping member configured to move from the free position to the clamping position in response to a downward movement by the user attached to the shuttle; a blocking member mounted on the frame for movement between a closed position blocking removal of the elongate support member from the guide structure and an open position where the blocking member does not block removal of the elongate support member from the guide structure; and wherein the clamping member is movable to an opening position from the free position, the clamping member in the free position blocks removal of the elongate support member from the guide structure, the clamping member in the opening position does not block removal of the elongate support member, and the clamping member operably engages the blocking member to move the blocking member from the closed position to the open position as the clamping member is moved from the free position to the opening position; characterized in that the shuttle further comprises an anti-inversion member mounted on the frame for movement between a closed position wherein the anti-inversion member blocks the elongate support member from being received into the guide structure and an open position wherein the anti-inversion member does not block the elongate support member from being received in the guide structure; wherein the anti-inversion member is mounted on the frame to pivot between the closed and open positions of the anti-inversion member; and wherein the clamping member in the opening position engages a first surface of the anti-inversion member to maintain the anti-inversion member in the open position with the shuttle in a desired orientation relative to gravity, and the clamping member in the opening position engages a second surface of the anti-inversion member to maintain the anti-inversion member in the closed position with the shuttle in an non-desired orientation relative to gravity.