Lenstrand: there is a hot battery bus,a switched hot battery bus and a battery bus.You got it wrong with the hot battery bus.
Lem: turning the battery switch off will depower the switched hot battery bus,in any circumstances.
The battery bus will be depowered also,except when you select, on ground the Stby pwr switch to BAT,or inflight on AUTO or BAT positions. In this case ,the battery bus will be powered through the hot battery bus,thus powering the stby AC and DC busses. However the switched hot battery bus will be depowered.
Brgds....Alex
One question for you ,Lem, did you ever use the fuel measuring stick,if so,how? Where are the conversion,correction tables?