This is an idea I got from Paul Lather that he did to his Berk. On my AC11SS (Super Steam) I had previously eliminated the superheaters when I did my 101 mods before DH09. This weekend I put them back in as feed water heaters. The heaters are plumbed in between the axle pump and boiler check valve. Average running steam prussure use to be 40psig, and now is 60psig for the same load and throttle setting.