\setbeamerfont{subtitle}{size=\normalsize}
% Frame bits
-\setbeamerfont{frametitle}{shape=\scshape,family=\rmfamily,size=\small}
+\setbeamerfont{frametitle}{shape=\scshape,family=\rmfamily,size=\tiny}
\setbeamerfont{footline}{shape=\scshape,family=\rmfamily}
% Use slightly more leading than normal.