Hope some good news come on SpaceX, too. What's up with F-H with its so dubious payload figures, especially for high energy trajectories? How's the cross-feed s

Hope some good news come on SpaceX, too. What's up with F-H with its so dubious payload figures, especially for high energy trajectories? How's the cross-feed system is coming along (if it haven't been dropped yet)? Where is the 'super efficient staged combustion methane engine' you mentioned a year back, any idea what thrust class it is and what is the fuel combination?