Location of diodes in the Alternator Restart system?

[Timcote1960]

Been reading this thread with interest. I myself have never tried the alternator restart system, and feel a bit guilty about it because the POH says to test it on a regular basis. I am wondering how other 337 pilots have managed this---is it all that important? What about the high voltage and the high voltage test system? I haven't run those either, but there they are recommended, mostly as a procedure to do while aloft.

When I was taught to fly the 337, the CFI told me "Just treat it like a really big, heavy 182." While I respect the aircraft's complexity, I guess I have glossed over some of the finer point. The electrical system has been one of them.

What say---do you run these checks as prescribed in the POH? Do they work? Is it worth it?

Tim