Sid;
A good few years ago we re-wrote our company checklists for cleaning up after a single engine **** down. The final item is "Open Bus Shed Switch"
From a company point of view this is because we fly them a lot at night or IFR, single pilot, and as you know, trying to find that switch in auto on an OPC is hard enough, for real IMC or night would probably distract too much from the auto.
SND