Another heatwave made work difficult and limited at the beginning of the week, however I did manage sort out three of the four O?S half-drop windows that would not close properly – this was due to the screws holding the upper rubber seal not being driven far enough in, so preventing the sliding pane from reaching the top.  The undercoat on the new front wing revealed a few defects in the finish that needed filling with stopper, so that was attended to.