Creampuff said ...
An in-flight magneto check, LOP at altitude and high power.....
Please O Great Wise One, pray now tell me what you would do if you discovered at that point an electrical systems was dead. Would you reselect it back to the live system at that HIGH power setting?
I'm guessing with your past history of gear and flap switch cockups you might just do that.
Let Jabba do the educating, because you are hopeless. Stick to your legal stuff. At least you know what you're talking about there.